diff --git a/.github/workflows/continuous-integration-workflow.yml b/.github/workflows/continuous-integration-workflow.yml
index 0e3e5977..03924ba6 100644
--- a/.github/workflows/continuous-integration-workflow.yml
+++ b/.github/workflows/continuous-integration-workflow.yml
@@ -24,7 +24,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: nightly-2022-11-23
+          toolchain: nightly
           override: true
 
       - name: rust-cache
@@ -61,7 +61,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: nightly-2022-11-23
+          toolchain: nightly
           override: true
           components: rustfmt, clippy
 
diff --git a/evm/src/cross_table_lookup.rs b/evm/src/cross_table_lookup.rs
index 1b184a50..15e186aa 100644
--- a/evm/src/cross_table_lookup.rs
+++ b/evm/src/cross_table_lookup.rs
@@ -217,7 +217,7 @@ impl<F: Field> CtlData<F> {
     }
 }
 
-pub(crate) fn cross_table_lookup_data<F: RichField, C: GenericConfig<D, F = F>, const D: usize>(
+pub(crate) fn cross_table_lookup_data<F: RichField, const D: usize>(
     trace_poly_values: &[Vec<PolynomialValues<F>>; NUM_TABLES],
     cross_table_lookups: &[CrossTableLookup<F>],
     ctl_challenges: &GrandProductChallengeSet<F>,
@@ -371,7 +371,7 @@ impl<'a, F: RichField + Extendable<D>, const D: usize>
     }
 }
 
-pub(crate) fn eval_cross_table_lookup_checks<F, FE, P, C, S, const D: usize, const D2: usize>(
+pub(crate) fn eval_cross_table_lookup_checks<F, FE, P, S, const D: usize, const D2: usize>(
     vars: StarkEvaluationVars<FE, P, { S::COLUMNS }>,
     ctl_vars: &[CtlCheckVars<F, FE, P, D2>],
     consumer: &mut ConstraintConsumer<P>,
@@ -379,7 +379,6 @@ pub(crate) fn eval_cross_table_lookup_checks<F, FE, P, C, S, const D: usize, con
     F: RichField + Extendable<D>,
     FE: FieldExtension<D2, BaseField = F>,
     P: PackedField<Scalar = FE>,
-    C: GenericConfig<D, F = F>,
     S: Stark<F, D>,
 {
     for lookup_vars in ctl_vars {
@@ -540,11 +539,7 @@ pub(crate) fn eval_cross_table_lookup_checks_circuit<
     }
 }
 
-pub(crate) fn verify_cross_table_lookups<
-    F: RichField + Extendable<D>,
-    C: GenericConfig<D, F = F>,
-    const D: usize,
->(
+pub(crate) fn verify_cross_table_lookups<F: RichField + Extendable<D>, const D: usize>(
     cross_table_lookups: &[CrossTableLookup<F>],
     ctl_zs_lasts: [Vec<F>; NUM_TABLES],
     config: &StarkConfig,
@@ -573,11 +568,7 @@ pub(crate) fn verify_cross_table_lookups<
     Ok(())
 }
 
-pub(crate) fn verify_cross_table_lookups_circuit<
-    F: RichField + Extendable<D>,
-    C: GenericConfig<D, F = F>,
-    const D: usize,
->(
+pub(crate) fn verify_cross_table_lookups_circuit<F: RichField + Extendable<D>, const D: usize>(
     builder: &mut CircuitBuilder<F, D>,
     cross_table_lookups: Vec<CrossTableLookup<F>>,
     ctl_zs_lasts: [Vec<Target>; NUM_TABLES],
diff --git a/evm/src/fixed_recursive_verifier.rs b/evm/src/fixed_recursive_verifier.rs
index 344b6d1c..e662874f 100644
--- a/evm/src/fixed_recursive_verifier.rs
+++ b/evm/src/fixed_recursive_verifier.rs
@@ -228,7 +228,7 @@ where
         }
 
         // Verify the CTL checks.
-        verify_cross_table_lookups_circuit::<F, C, D>(
+        verify_cross_table_lookups_circuit::<F, D>(
             &mut builder,
             all_cross_table_lookups(),
             pis.map(|p| p.ctl_zs_last),
diff --git a/evm/src/permutation.rs b/evm/src/permutation.rs
index 64223ad7..a92774cb 100644
--- a/evm/src/permutation.rs
+++ b/evm/src/permutation.rs
@@ -13,7 +13,7 @@ use plonky2::iop::challenger::{Challenger, RecursiveChallenger};
 use plonky2::iop::ext_target::ExtensionTarget;
 use plonky2::iop::target::Target;
 use plonky2::plonk::circuit_builder::CircuitBuilder;
-use plonky2::plonk::config::{AlgebraicHasher, GenericConfig, Hasher};
+use plonky2::plonk::config::{AlgebraicHasher, Hasher};
 use plonky2::plonk::plonk_common::{reduce_with_powers, reduce_with_powers_ext_circuit};
 use plonky2::util::reducing::{ReducingFactor, ReducingFactorTarget};
 use plonky2_maybe_rayon::*;
@@ -89,7 +89,7 @@ pub(crate) struct GrandProductChallengeSet<T: Copy + Eq + PartialEq + Debug> {
 }
 
 /// Compute all Z polynomials (for permutation arguments).
-pub(crate) fn compute_permutation_z_polys<F, C, S, const D: usize>(
+pub(crate) fn compute_permutation_z_polys<F, S, const D: usize>(
     stark: &S,
     config: &StarkConfig,
     trace_poly_values: &[PolynomialValues<F>],
@@ -97,7 +97,6 @@ pub(crate) fn compute_permutation_z_polys<F, C, S, const D: usize>(
 ) -> Vec<PolynomialValues<F>>
 where
     F: RichField + Extendable<D>,
-    C: GenericConfig<D, F = F>,
     S: Stark<F, D>,
 {
     let permutation_pairs = stark.permutation_pairs();
@@ -286,7 +285,7 @@ where
     pub(crate) permutation_challenge_sets: Vec<GrandProductChallengeSet<F>>,
 }
 
-pub(crate) fn eval_permutation_checks<F, FE, P, C, S, const D: usize, const D2: usize>(
+pub(crate) fn eval_permutation_checks<F, FE, P, S, const D: usize, const D2: usize>(
     stark: &S,
     config: &StarkConfig,
     vars: StarkEvaluationVars<FE, P, { S::COLUMNS }>,
@@ -296,7 +295,6 @@ pub(crate) fn eval_permutation_checks<F, FE, P, C, S, const D: usize, const D2:
     F: RichField + Extendable<D>,
     FE: FieldExtension<D2, BaseField = F>,
     P: PackedField<Scalar = FE>,
-    C: GenericConfig<D, F = F>,
     S: Stark<F, D>,
 {
     let PermutationCheckVars {
diff --git a/evm/src/prover.rs b/evm/src/prover.rs
index b4ea0d90..c801950a 100644
--- a/evm/src/prover.rs
+++ b/evm/src/prover.rs
@@ -124,7 +124,7 @@ where
     let ctl_data_per_table = timed!(
         timing,
         "compute CTL data",
-        cross_table_lookup_data::<F, C, D>(
+        cross_table_lookup_data::<F, D>(
             &trace_poly_values,
             &all_stark.cross_table_lookups,
             &ctl_challenges,
@@ -286,7 +286,7 @@ where
         timed!(
             timing,
             "compute permutation Z(x) polys",
-            compute_permutation_z_polys::<F, C, S, D>(stark, config, trace_poly_values, challenges)
+            compute_permutation_z_polys::<F, S, D>(stark, config, trace_poly_values, challenges)
         )
     });
     let num_permutation_zs = permutation_zs.as_ref().map(|v| v.len()).unwrap_or(0);
@@ -533,7 +533,7 @@ where
                     filter_column: &zs_columns.filter_column,
                 })
                 .collect::<Vec<_>>();
-            eval_vanishing_poly::<F, F, P, C, S, D, 1>(
+            eval_vanishing_poly::<F, F, P, S, D, 1>(
                 stark,
                 config,
                 vars,
@@ -550,7 +550,7 @@ where
 
             let num_challenges = alphas.len();
 
-            (0..P::WIDTH).into_iter().map(move |i| {
+            (0..P::WIDTH).map(move |i| {
                 (0..num_challenges)
                     .map(|j| constraints_evals[j].as_slice()[i])
                     .collect()
@@ -651,7 +651,7 @@ fn check_constraints<'a, F, C, S, const D: usize>(
                     filter_column: &zs_columns.filter_column,
                 })
                 .collect::<Vec<_>>();
-            eval_vanishing_poly::<F, F, F, C, S, D, 1>(
+            eval_vanishing_poly::<F, F, F, S, D, 1>(
                 stark,
                 config,
                 vars,
diff --git a/evm/src/recursive_verifier.rs b/evm/src/recursive_verifier.rs
index 1fba88e3..d3018ba4 100644
--- a/evm/src/recursive_verifier.rs
+++ b/evm/src/recursive_verifier.rs
@@ -132,7 +132,7 @@ impl<F: RichField + Extendable<D>, C: GenericConfig<D, F = F>, const D: usize>
         }
 
         // Verify the CTL checks.
-        verify_cross_table_lookups::<F, C, D>(
+        verify_cross_table_lookups::<F, D>(
             &cross_table_lookups,
             pis.map(|p| p.ctl_zs_last),
             inner_config,
@@ -393,7 +393,7 @@ fn verify_stark_proof_with_challenges_circuit<
     with_context!(
         builder,
         "evaluate vanishing polynomial",
-        eval_vanishing_poly_circuit::<F, C, S, D>(
+        eval_vanishing_poly_circuit::<F, S, D>(
             builder,
             stark,
             inner_config,
diff --git a/evm/src/vanishing_poly.rs b/evm/src/vanishing_poly.rs
index e776fa5c..3a2da78c 100644
--- a/evm/src/vanishing_poly.rs
+++ b/evm/src/vanishing_poly.rs
@@ -2,7 +2,6 @@ use plonky2::field::extension::{Extendable, FieldExtension};
 use plonky2::field::packed::PackedField;
 use plonky2::hash::hash_types::RichField;
 use plonky2::plonk::circuit_builder::CircuitBuilder;
-use plonky2::plonk::config::GenericConfig;
 
 use crate::config::StarkConfig;
 use crate::constraint_consumer::{ConstraintConsumer, RecursiveConstraintConsumer};
@@ -17,7 +16,7 @@ use crate::permutation::{
 use crate::stark::Stark;
 use crate::vars::{StarkEvaluationTargets, StarkEvaluationVars};
 
-pub(crate) fn eval_vanishing_poly<F, FE, P, C, S, const D: usize, const D2: usize>(
+pub(crate) fn eval_vanishing_poly<F, FE, P, S, const D: usize, const D2: usize>(
     stark: &S,
     config: &StarkConfig,
     vars: StarkEvaluationVars<FE, P, { S::COLUMNS }>,
@@ -28,12 +27,11 @@ pub(crate) fn eval_vanishing_poly<F, FE, P, C, S, const D: usize, const D2: usiz
     F: RichField + Extendable<D>,
     FE: FieldExtension<D2, BaseField = F>,
     P: PackedField<Scalar = FE>,
-    C: GenericConfig<D, F = F>,
     S: Stark<F, D>,
 {
     stark.eval_packed_generic(vars, consumer);
     if let Some(permutation_vars) = permutation_vars {
-        eval_permutation_checks::<F, FE, P, C, S, D, D2>(
+        eval_permutation_checks::<F, FE, P, S, D, D2>(
             stark,
             config,
             vars,
@@ -41,10 +39,10 @@ pub(crate) fn eval_vanishing_poly<F, FE, P, C, S, const D: usize, const D2: usiz
             consumer,
         );
     }
-    eval_cross_table_lookup_checks::<F, FE, P, C, S, D, D2>(vars, ctl_vars, consumer);
+    eval_cross_table_lookup_checks::<F, FE, P, S, D, D2>(vars, ctl_vars, consumer);
 }
 
-pub(crate) fn eval_vanishing_poly_circuit<F, C, S, const D: usize>(
+pub(crate) fn eval_vanishing_poly_circuit<F, S, const D: usize>(
     builder: &mut CircuitBuilder<F, D>,
     stark: &S,
     config: &StarkConfig,
@@ -54,7 +52,6 @@ pub(crate) fn eval_vanishing_poly_circuit<F, C, S, const D: usize>(
     consumer: &mut RecursiveConstraintConsumer<F, D>,
 ) where
     F: RichField + Extendable<D>,
-    C: GenericConfig<D, F = F>,
     S: Stark<F, D>,
     [(); S::COLUMNS]:,
 {
diff --git a/evm/src/verifier.rs b/evm/src/verifier.rs
index c6d0373e..b4b2f6bd 100644
--- a/evm/src/verifier.rs
+++ b/evm/src/verifier.rs
@@ -97,7 +97,7 @@ where
         config,
     )?;
 
-    verify_cross_table_lookups::<F, C, D>(
+    verify_cross_table_lookups::<F, D>(
         cross_table_lookups,
         all_proof.stark_proofs.map(|p| p.proof.openings.ctl_zs_last),
         config,
@@ -155,7 +155,7 @@ where
         next_zs: permutation_ctl_zs_next[..num_permutation_zs].to_vec(),
         permutation_challenge_sets: challenges.permutation_challenge_sets.clone().unwrap(),
     });
-    eval_vanishing_poly::<F, F::Extension, F::Extension, C, S, D, D>(
+    eval_vanishing_poly::<F, F::Extension, F::Extension, S, D, D>(
         stark,
         config,
         vars,
diff --git a/plonky2/benches/field_arithmetic.rs b/plonky2/benches/field_arithmetic.rs
index a3b66fa1..9db45a50 100644
--- a/plonky2/benches/field_arithmetic.rs
+++ b/plonky2/benches/field_arithmetic.rs
@@ -119,7 +119,7 @@ pub(crate) fn bench_field<F: Field>(c: &mut Criterion) {
         &format!("batch_multiplicative_inverse-tiny<{}>", type_name::<F>()),
         |b| {
             b.iter_batched(
-                || (0..2).into_iter().map(|_| F::rand()).collect::<Vec<_>>(),
+                || (0..2).map(|_| F::rand()).collect::<Vec<_>>(),
                 |x| F::batch_multiplicative_inverse(&x),
                 BatchSize::SmallInput,
             )
@@ -130,7 +130,7 @@ pub(crate) fn bench_field<F: Field>(c: &mut Criterion) {
         &format!("batch_multiplicative_inverse-small<{}>", type_name::<F>()),
         |b| {
             b.iter_batched(
-                || (0..4).into_iter().map(|_| F::rand()).collect::<Vec<_>>(),
+                || (0..4).map(|_| F::rand()).collect::<Vec<_>>(),
                 |x| F::batch_multiplicative_inverse(&x),
                 BatchSize::SmallInput,
             )
@@ -141,7 +141,7 @@ pub(crate) fn bench_field<F: Field>(c: &mut Criterion) {
         &format!("batch_multiplicative_inverse-medium<{}>", type_name::<F>()),
         |b| {
             b.iter_batched(
-                || (0..16).into_iter().map(|_| F::rand()).collect::<Vec<_>>(),
+                || (0..16).map(|_| F::rand()).collect::<Vec<_>>(),
                 |x| F::batch_multiplicative_inverse(&x),
                 BatchSize::SmallInput,
             )
@@ -152,7 +152,7 @@ pub(crate) fn bench_field<F: Field>(c: &mut Criterion) {
         &format!("batch_multiplicative_inverse-large<{}>", type_name::<F>()),
         |b| {
             b.iter_batched(
-                || (0..256).into_iter().map(|_| F::rand()).collect::<Vec<_>>(),
+                || (0..256).map(|_| F::rand()).collect::<Vec<_>>(),
                 |x| F::batch_multiplicative_inverse(&x),
                 BatchSize::LargeInput,
             )
@@ -163,12 +163,7 @@ pub(crate) fn bench_field<F: Field>(c: &mut Criterion) {
         &format!("batch_multiplicative_inverse-huge<{}>", type_name::<F>()),
         |b| {
             b.iter_batched(
-                || {
-                    (0..65536)
-                        .into_iter()
-                        .map(|_| F::rand())
-                        .collect::<Vec<_>>()
-                },
+                || (0..65536).map(|_| F::rand()).collect::<Vec<_>>(),
                 |x| F::batch_multiplicative_inverse(&x),
                 BatchSize::LargeInput,
             )
diff --git a/plonky2/examples/bench_recursion.rs b/plonky2/examples/bench_recursion.rs
index 5a1196e1..9b06b435 100644
--- a/plonky2/examples/bench_recursion.rs
+++ b/plonky2/examples/bench_recursion.rs
@@ -103,7 +103,7 @@ where
 {
     let (inner_proof, inner_vd, inner_cd) = inner;
     let mut builder = CircuitBuilder::<F, D>::new(config.clone());
-    let pt = builder.add_virtual_proof_with_pis::<InnerC>(inner_cd);
+    let pt = builder.add_virtual_proof_with_pis(inner_cd);
 
     let inner_data = builder.add_virtual_verifier_data(inner_cd.config.fri_config.cap_height);
 
diff --git a/plonky2/src/fri/challenges.rs b/plonky2/src/fri/challenges.rs
index 7a184504..41b00a7e 100644
--- a/plonky2/src/fri/challenges.rs
+++ b/plonky2/src/fri/challenges.rs
@@ -73,7 +73,7 @@ impl<F: RichField + Extendable<D>, H: AlgebraicHasher<F>, const D: usize>
         }
     }
 
-    pub fn fri_challenges<C: GenericConfig<D, F = F>>(
+    pub fn fri_challenges(
         &mut self,
         builder: &mut CircuitBuilder<F, D>,
         commit_phase_merkle_caps: &[MerkleCapTarget],
diff --git a/plonky2/src/fri/proof.rs b/plonky2/src/fri/proof.rs
index f841b274..0e0d7df3 100644
--- a/plonky2/src/fri/proof.rs
+++ b/plonky2/src/fri/proof.rs
@@ -15,7 +15,7 @@ use crate::hash::merkle_tree::MerkleCap;
 use crate::hash::path_compression::{compress_merkle_proofs, decompress_merkle_proofs};
 use crate::iop::ext_target::ExtensionTarget;
 use crate::iop::target::Target;
-use crate::plonk::config::{GenericConfig, Hasher};
+use crate::plonk::config::Hasher;
 use crate::plonk::plonk_common::salt_size;
 use crate::plonk::proof::{FriInferredElements, ProofChallenges};
 
@@ -135,11 +135,7 @@ pub struct CompressedFriProof<F: RichField + Extendable<D>, H: Hasher<F>, const
 
 impl<F: RichField + Extendable<D>, H: Hasher<F>, const D: usize> FriProof<F, H, D> {
     /// Compress all the Merkle paths in the FRI proof and remove duplicate indices.
-    pub fn compress<C: GenericConfig<D, F = F, Hasher = H>>(
-        self,
-        indices: &[usize],
-        params: &FriParams,
-    ) -> CompressedFriProof<F, H, D> {
+    pub fn compress(self, indices: &[usize], params: &FriParams) -> CompressedFriProof<F, H, D> {
         let FriProof {
             commit_phase_merkle_caps,
             query_round_proofs,
@@ -241,7 +237,7 @@ impl<F: RichField + Extendable<D>, H: Hasher<F>, const D: usize> FriProof<F, H,
 
 impl<F: RichField + Extendable<D>, H: Hasher<F>, const D: usize> CompressedFriProof<F, H, D> {
     /// Decompress all the Merkle paths in the FRI proof and reinsert duplicate indices.
-    pub(crate) fn decompress<C: GenericConfig<D, F = F, Hasher = H>>(
+    pub(crate) fn decompress(
         self,
         challenges: &ProofChallenges<F, D>,
         fri_inferred_elements: FriInferredElements<F, D>,
diff --git a/plonky2/src/fri/recursive_verifier.rs b/plonky2/src/fri/recursive_verifier.rs
index ac74f50f..8e9329d5 100644
--- a/plonky2/src/fri/recursive_verifier.rs
+++ b/plonky2/src/fri/recursive_verifier.rs
@@ -25,7 +25,7 @@ use crate::with_context;
 impl<F: RichField + Extendable<D>, const D: usize> CircuitBuilder<F, D> {
     /// Computes P'(x^arity) from {P(x*g^i)}_(i=0..arity), where g is a `arity`-th root of unity
     /// and P' is the FRI reduced polynomial.
-    fn compute_evaluation<C: GenericConfig<D, F = F>>(
+    fn compute_evaluation(
         &mut self,
         x: Target,
         x_index_within_coset_bits: &[BoolTarget],
@@ -58,7 +58,7 @@ impl<F: RichField + Extendable<D>, const D: usize> CircuitBuilder<F, D> {
     /// Make sure we have enough wires and routed wires to do the FRI checks efficiently. This check
     /// isn't required -- without it we'd get errors elsewhere in the stack -- but just gives more
     /// helpful errors.
-    fn check_recursion_config<C: GenericConfig<D, F = F>>(&self, max_fri_arity_bits: usize) {
+    fn check_recursion_config(&self, max_fri_arity_bits: usize) {
         let random_access = RandomAccessGate::<F, D>::new_from_config(
             &self.config,
             max_fri_arity_bits.max(self.config.fri_config.cap_height),
@@ -91,11 +91,7 @@ impl<F: RichField + Extendable<D>, const D: usize> CircuitBuilder<F, D> {
         );
     }
 
-    fn fri_verify_proof_of_work<H: AlgebraicHasher<F>>(
-        &mut self,
-        fri_pow_response: Target,
-        config: &FriConfig,
-    ) {
+    fn fri_verify_proof_of_work(&mut self, fri_pow_response: Target, config: &FriConfig) {
         self.assert_leading_zeros(
             fri_pow_response,
             config.proof_of_work_bits + (64 - F::order().bits()) as u32,
@@ -114,7 +110,7 @@ impl<F: RichField + Extendable<D>, const D: usize> CircuitBuilder<F, D> {
         C::Hasher: AlgebraicHasher<F>,
     {
         if let Some(max_arity_bits) = params.max_arity_bits() {
-            self.check_recursion_config::<C>(max_arity_bits);
+            self.check_recursion_config(max_arity_bits);
         }
 
         debug_assert_eq!(
@@ -129,7 +125,7 @@ impl<F: RichField + Extendable<D>, const D: usize> CircuitBuilder<F, D> {
         with_context!(
             self,
             "check PoW",
-            self.fri_verify_proof_of_work::<C::Hasher>(challenges.fri_pow_response, &params.config)
+            self.fri_verify_proof_of_work(challenges.fri_pow_response, &params.config)
         );
 
         // Check that parameters are coherent.
@@ -206,7 +202,7 @@ impl<F: RichField + Extendable<D>, const D: usize> CircuitBuilder<F, D> {
         }
     }
 
-    fn fri_combine_initial<C: GenericConfig<D, F = F>>(
+    fn fri_combine_initial(
         &mut self,
         instance: &FriInstanceInfoTarget<D>,
         proof: &FriInitialTreeProofTarget,
@@ -298,7 +294,7 @@ impl<F: RichField + Extendable<D>, const D: usize> CircuitBuilder<F, D> {
         let mut old_eval = with_context!(
             self,
             "combine initial oracles",
-            self.fri_combine_initial::<C>(
+            self.fri_combine_initial(
                 instance,
                 &round_proof.initial_trees_proof,
                 challenges.fri_alpha,
@@ -324,7 +320,7 @@ impl<F: RichField + Extendable<D>, const D: usize> CircuitBuilder<F, D> {
             old_eval = with_context!(
                 self,
                 "infer evaluation using interpolation",
-                self.compute_evaluation::<C>(
+                self.compute_evaluation(
                     subgroup_x,
                     x_index_within_coset_bits,
                     arity_bits,
diff --git a/plonky2/src/hash/merkle_tree.rs b/plonky2/src/hash/merkle_tree.rs
index e0c8e79d..e884554f 100644
--- a/plonky2/src/hash/merkle_tree.rs
+++ b/plonky2/src/hash/merkle_tree.rs
@@ -184,7 +184,6 @@ impl<F: RichField, H: Hasher<F>> MerkleTree<F, H> {
         // Mask out high bits to get the index within the sub-tree.
         let mut pair_index = leaf_index & ((1 << num_layers) - 1);
         let siblings = (0..num_layers)
-            .into_iter()
             .map(|i| {
                 let parity = pair_index & 1;
                 pair_index >>= 1;
diff --git a/plonky2/src/iop/ext_target.rs b/plonky2/src/iop/ext_target.rs
index c9929b21..08bdcba0 100644
--- a/plonky2/src/iop/ext_target.rs
+++ b/plonky2/src/iop/ext_target.rs
@@ -139,9 +139,7 @@ pub fn flatten_target<const D: usize>(l: &[ExtensionTarget<D>]) -> Vec<Target> {
 }
 
 /// Batch every D-sized chunks into extension targets.
-pub fn unflatten_target<F: RichField + Extendable<D>, const D: usize>(
-    l: &[Target],
-) -> Vec<ExtensionTarget<D>> {
+pub fn unflatten_target<const D: usize>(l: &[Target]) -> Vec<ExtensionTarget<D>> {
     debug_assert_eq!(l.len() % D, 0);
     l.chunks_exact(D)
         .map(|c| c.to_vec().try_into().unwrap())
diff --git a/plonky2/src/plonk/get_challenges.rs b/plonky2/src/plonk/get_challenges.rs
index 240d9047..1f6bd7ae 100644
--- a/plonky2/src/plonk/get_challenges.rs
+++ b/plonky2/src/plonk/get_challenges.rs
@@ -277,7 +277,7 @@ impl<F: RichField + Extendable<D>, const D: usize> CircuitBuilder<F, D> {
             plonk_gammas,
             plonk_alphas,
             plonk_zeta,
-            fri_challenges: challenger.fri_challenges::<C>(
+            fri_challenges: challenger.fri_challenges(
                 self,
                 commit_phase_merkle_caps,
                 final_poly,
diff --git a/plonky2/src/plonk/proof.rs b/plonky2/src/plonk/proof.rs
index ea616e8f..67884e01 100644
--- a/plonky2/src/plonk/proof.rs
+++ b/plonky2/src/plonk/proof.rs
@@ -65,7 +65,7 @@ impl<F: RichField + Extendable<D>, C: GenericConfig<D, F = F>, const D: usize> P
             plonk_zs_partial_products_cap,
             quotient_polys_cap,
             openings,
-            opening_proof: opening_proof.compress::<C>(indices, params),
+            opening_proof: opening_proof.compress(indices, params),
         }
     }
 }
@@ -163,7 +163,7 @@ impl<F: RichField + Extendable<D>, C: GenericConfig<D, F = F>, const D: usize>
             plonk_zs_partial_products_cap,
             quotient_polys_cap,
             openings,
-            opening_proof: opening_proof.decompress::<C>(challenges, fri_inferred_elements, params),
+            opening_proof: opening_proof.decompress(challenges, fri_inferred_elements, params),
         }
     }
 }
diff --git a/plonky2/src/plonk/prover.rs b/plonky2/src/plonk/prover.rs
index f8f66ea1..f2b61226 100644
--- a/plonky2/src/plonk/prover.rs
+++ b/plonky2/src/plonk/prover.rs
@@ -420,7 +420,7 @@ fn compute_quotient_polys<
                 public_inputs_hash,
             );
 
-            let mut quotient_values_batch = eval_vanishing_poly_base_batch::<F, C, D>(
+            let mut quotient_values_batch = eval_vanishing_poly_base_batch::<F, D>(
                 common_data,
                 &indices_batch,
                 &shifted_xs_batch,
diff --git a/plonky2/src/plonk/vanishing_poly.rs b/plonky2/src/plonk/vanishing_poly.rs
index 30473650..d1d06403 100644
--- a/plonky2/src/plonk/vanishing_poly.rs
+++ b/plonky2/src/plonk/vanishing_poly.rs
@@ -10,7 +10,6 @@ use crate::iop::ext_target::ExtensionTarget;
 use crate::iop::target::Target;
 use crate::plonk::circuit_builder::CircuitBuilder;
 use crate::plonk::circuit_data::CommonCircuitData;
-use crate::plonk::config::GenericConfig;
 use crate::plonk::plonk_common;
 use crate::plonk::plonk_common::eval_l_0_circuit;
 use crate::plonk::vars::{EvaluationTargets, EvaluationVars, EvaluationVarsBaseBatch};
@@ -22,11 +21,7 @@ use crate::with_context;
 /// Evaluate the vanishing polynomial at `x`. In this context, the vanishing polynomial is a random
 /// linear combination of gate constraints, plus some other terms relating to the permutation
 /// argument. All such terms should vanish on `H`.
-pub(crate) fn eval_vanishing_poly<
-    F: RichField + Extendable<D>,
-    C: GenericConfig<D, F = F>,
-    const D: usize,
->(
+pub(crate) fn eval_vanishing_poly<F: RichField + Extendable<D>, const D: usize>(
     common_data: &CommonCircuitData<F, D>,
     x: F::Extension,
     vars: EvaluationVars<F, D>,
@@ -41,7 +36,7 @@ pub(crate) fn eval_vanishing_poly<
     let max_degree = common_data.quotient_degree_factor;
     let num_prods = common_data.num_partial_products;
 
-    let constraint_terms = evaluate_gate_constraints::<F, C, D>(common_data, vars);
+    let constraint_terms = evaluate_gate_constraints::<F, D>(common_data, vars);
 
     // The L_0(x) (Z(x) - 1) vanishing terms.
     let mut vanishing_z_1_terms = Vec::new();
@@ -97,11 +92,7 @@ pub(crate) fn eval_vanishing_poly<
 }
 
 /// Like `eval_vanishing_poly`, but specialized for base field points. Batched.
-pub(crate) fn eval_vanishing_poly_base_batch<
-    F: RichField + Extendable<D>,
-    C: GenericConfig<D, F = F>,
-    const D: usize,
->(
+pub(crate) fn eval_vanishing_poly_base_batch<F: RichField + Extendable<D>, const D: usize>(
     common_data: &CommonCircuitData<F, D>,
     indices_batch: &[usize],
     xs_batch: &[F],
@@ -129,7 +120,7 @@ pub(crate) fn eval_vanishing_poly_base_batch<
     let num_gate_constraints = common_data.num_gate_constraints;
 
     let constraint_terms_batch =
-        evaluate_gate_constraints_base_batch::<F, C, D>(common_data, vars_batch);
+        evaluate_gate_constraints_base_batch::<F, D>(common_data, vars_batch);
     debug_assert!(constraint_terms_batch.len() == n * num_gate_constraints);
 
     let num_challenges = common_data.config.num_challenges;
@@ -208,11 +199,7 @@ pub(crate) fn eval_vanishing_poly_base_batch<
 /// `num_gate_constraints` is the largest number of constraints imposed by any gate. It is not
 /// strictly necessary, but it helps performance by ensuring that we allocate a vector with exactly
 /// the capacity that we need.
-pub fn evaluate_gate_constraints<
-    F: RichField + Extendable<D>,
-    C: GenericConfig<D, F = F>,
-    const D: usize,
->(
+pub fn evaluate_gate_constraints<F: RichField + Extendable<D>, const D: usize>(
     common_data: &CommonCircuitData<F, D>,
     vars: EvaluationVars<F, D>,
 ) -> Vec<F::Extension> {
@@ -242,11 +229,7 @@ pub fn evaluate_gate_constraints<
 /// Returns a vector of `num_gate_constraints * vars_batch.len()` field elements. The constraints
 /// corresponding to `vars_batch[i]` are found in `result[i], result[vars_batch.len() + i],
 /// result[2 * vars_batch.len() + i], ...`.
-pub fn evaluate_gate_constraints_base_batch<
-    F: RichField + Extendable<D>,
-    C: GenericConfig<D, F = F>,
-    const D: usize,
->(
+pub fn evaluate_gate_constraints_base_batch<F: RichField + Extendable<D>, const D: usize>(
     common_data: &CommonCircuitData<F, D>,
     vars_batch: EvaluationVarsBaseBatch<F>,
 ) -> Vec<F> {
@@ -273,11 +256,7 @@ pub fn evaluate_gate_constraints_base_batch<
     constraints_batch
 }
 
-pub fn evaluate_gate_constraints_circuit<
-    F: RichField + Extendable<D>,
-    C: GenericConfig<D, F = F>,
-    const D: usize,
->(
+pub fn evaluate_gate_constraints_circuit<F: RichField + Extendable<D>, const D: usize>(
     builder: &mut CircuitBuilder<F, D>,
     common_data: &CommonCircuitData<F, D>,
     vars: EvaluationTargets<D>,
@@ -308,11 +287,7 @@ pub fn evaluate_gate_constraints_circuit<
 ///
 /// Assumes `x != 1`; if `x` could be 1 then this is unsound. This is fine if `x` is a random
 /// variable drawn from a sufficiently large domain.
-pub(crate) fn eval_vanishing_poly_circuit<
-    F: RichField + Extendable<D>,
-    C: GenericConfig<D, F = F>,
-    const D: usize,
->(
+pub(crate) fn eval_vanishing_poly_circuit<F: RichField + Extendable<D>, const D: usize>(
     builder: &mut CircuitBuilder<F, D>,
     common_data: &CommonCircuitData<F, D>,
     x: ExtensionTarget<D>,
@@ -332,7 +307,7 @@ pub(crate) fn eval_vanishing_poly_circuit<
     let constraint_terms = with_context!(
         builder,
         "evaluate gate constraints",
-        evaluate_gate_constraints_circuit::<F, C, D>(builder, common_data, vars,)
+        evaluate_gate_constraints_circuit::<F, D>(builder, common_data, vars,)
     );
 
     // The L_0(x) (Z(x) - 1) vanishing terms.
diff --git a/plonky2/src/plonk/verifier.rs b/plonky2/src/plonk/verifier.rs
index 893720c6..7e68e59e 100644
--- a/plonky2/src/plonk/verifier.rs
+++ b/plonky2/src/plonk/verifier.rs
@@ -59,7 +59,7 @@ pub(crate) fn verify_with_challenges<
     let partial_products = &proof.openings.partial_products;
 
     // Evaluate the vanishing polynomial at our challenge point, zeta.
-    let vanishing_polys_zeta = eval_vanishing_poly::<F, C, D>(
+    let vanishing_polys_zeta = eval_vanishing_poly::<F, D>(
         common_data,
         challenges.plonk_zeta,
         vars,
diff --git a/plonky2/src/recursion/conditional_recursive_verifier.rs b/plonky2/src/recursion/conditional_recursive_verifier.rs
index 2596e1f0..6331118b 100644
--- a/plonky2/src/recursion/conditional_recursive_verifier.rs
+++ b/plonky2/src/recursion/conditional_recursive_verifier.rs
@@ -374,9 +374,9 @@ mod tests {
         // Conditionally verify the two proofs.
         let mut builder = CircuitBuilder::<F, D>::new(config);
         let mut pw = PartialWitness::new();
-        let pt = builder.add_virtual_proof_with_pis::<C>(&data.common);
+        let pt = builder.add_virtual_proof_with_pis(&data.common);
         pw.set_proof_with_pis_target(&pt, &proof);
-        let dummy_pt = builder.add_virtual_proof_with_pis::<C>(&data.common);
+        let dummy_pt = builder.add_virtual_proof_with_pis(&data.common);
         pw.set_proof_with_pis_target::<C, D>(&dummy_pt, &dummy_proof);
         let inner_data =
             builder.add_virtual_verifier_data(data.common.config.fri_config.cap_height);
diff --git a/plonky2/src/recursion/cyclic_recursion.rs b/plonky2/src/recursion/cyclic_recursion.rs
index 656ff3b9..9b305626 100644
--- a/plonky2/src/recursion/cyclic_recursion.rs
+++ b/plonky2/src/recursion/cyclic_recursion.rs
@@ -40,7 +40,7 @@ impl<C: GenericConfig<D>, const D: usize> VerifierOnlyCircuitData<C, D> {
 }
 
 impl VerifierCircuitTarget {
-    fn from_slice<F: RichField + Extendable<D>, C: GenericConfig<D, F = F>, const D: usize>(
+    fn from_slice<F: RichField + Extendable<D>, const D: usize>(
         slice: &[Target],
         common_data: &CommonCircuitData<F, D>,
     ) -> Result<Self> {
@@ -101,7 +101,7 @@ impl<F: RichField + Extendable<D>, const D: usize> CircuitBuilder<F, D> {
             self.goal_common_data = Some(common_data.clone());
         }
 
-        let inner_cyclic_pis = VerifierCircuitTarget::from_slice::<F, C, D>(
+        let inner_cyclic_pis = VerifierCircuitTarget::from_slice::<F, D>(
             &cyclic_proof_with_pis.public_inputs,
             common_data,
         )?;
@@ -207,7 +207,7 @@ mod tests {
         let data = builder.build::<C>();
         let config = CircuitConfig::standard_recursion_config();
         let mut builder = CircuitBuilder::<F, D>::new(config);
-        let proof = builder.add_virtual_proof_with_pis::<C>(&data.common);
+        let proof = builder.add_virtual_proof_with_pis(&data.common);
         let verifier_data =
             builder.add_virtual_verifier_data(data.common.config.fri_config.cap_height);
         builder.verify_proof::<C>(&proof, &verifier_data, &data.common);
@@ -215,7 +215,7 @@ mod tests {
 
         let config = CircuitConfig::standard_recursion_config();
         let mut builder = CircuitBuilder::<F, D>::new(config);
-        let proof = builder.add_virtual_proof_with_pis::<C>(&data.common);
+        let proof = builder.add_virtual_proof_with_pis(&data.common);
         let verifier_data =
             builder.add_virtual_verifier_data(data.common.config.fri_config.cap_height);
         builder.verify_proof::<C>(&proof, &verifier_data, &data.common);
@@ -257,7 +257,7 @@ mod tests {
         let condition = builder.add_virtual_bool_target_safe();
 
         // Unpack inner proof's public inputs.
-        let inner_cyclic_proof_with_pis = builder.add_virtual_proof_with_pis::<C>(&common_data);
+        let inner_cyclic_proof_with_pis = builder.add_virtual_proof_with_pis(&common_data);
         let inner_cyclic_pis = &inner_cyclic_proof_with_pis.public_inputs;
         let inner_cyclic_initial_hash = HashOutTarget::try_from(&inner_cyclic_pis[0..4]).unwrap();
         let inner_cyclic_latest_hash = HashOutTarget::try_from(&inner_cyclic_pis[4..8]).unwrap();
diff --git a/plonky2/src/recursion/dummy_circuit.rs b/plonky2/src/recursion/dummy_circuit.rs
index c8b98a96..53fa0bb0 100644
--- a/plonky2/src/recursion/dummy_circuit.rs
+++ b/plonky2/src/recursion/dummy_circuit.rs
@@ -113,7 +113,7 @@ impl<F: RichField + Extendable<D>, const D: usize> CircuitBuilder<F, D> {
     {
         let dummy_circuit = dummy_circuit::<F, C, D>(common_data);
         let dummy_proof_with_pis = dummy_proof(&dummy_circuit, HashMap::new())?;
-        let dummy_proof_with_pis_target = self.add_virtual_proof_with_pis::<C>(common_data);
+        let dummy_proof_with_pis_target = self.add_virtual_proof_with_pis(common_data);
         let dummy_verifier_data_target =
             self.add_virtual_verifier_data(self.config.fri_config.cap_height);
 
diff --git a/plonky2/src/recursion/recursive_verifier.rs b/plonky2/src/recursion/recursive_verifier.rs
index 9aafb1f5..91beb049 100644
--- a/plonky2/src/recursion/recursive_verifier.rs
+++ b/plonky2/src/recursion/recursive_verifier.rs
@@ -74,7 +74,7 @@ impl<F: RichField + Extendable<D>, const D: usize> CircuitBuilder<F, D> {
         let vanishing_polys_zeta = with_context!(
             self,
             "evaluate the vanishing polynomial at our challenge point, zeta.",
-            eval_vanishing_poly_circuit::<F, C, D>(
+            eval_vanishing_poly_circuit::<F, D>(
                 self,
                 inner_common_data,
                 challenges.plonk_zeta,
@@ -126,11 +126,11 @@ impl<F: RichField + Extendable<D>, const D: usize> CircuitBuilder<F, D> {
         );
     }
 
-    pub fn add_virtual_proof_with_pis<InnerC: GenericConfig<D, F = F>>(
+    pub fn add_virtual_proof_with_pis(
         &mut self,
         common_data: &CommonCircuitData<F, D>,
     ) -> ProofWithPublicInputsTarget<D> {
-        let proof = self.add_virtual_proof::<InnerC>(common_data);
+        let proof = self.add_virtual_proof(common_data);
         let public_inputs = self.add_virtual_targets(common_data.num_public_inputs);
         ProofWithPublicInputsTarget {
             proof,
@@ -138,10 +138,7 @@ impl<F: RichField + Extendable<D>, const D: usize> CircuitBuilder<F, D> {
         }
     }
 
-    fn add_virtual_proof<InnerC: GenericConfig<D, F = F>>(
-        &mut self,
-        common_data: &CommonCircuitData<F, D>,
-    ) -> ProofTarget<D> {
+    fn add_virtual_proof(&mut self, common_data: &CommonCircuitData<F, D>) -> ProofTarget<D> {
         let config = &common_data.config;
         let fri_params = &common_data.fri_params;
         let cap_height = fri_params.config.cap_height;
@@ -158,15 +155,12 @@ impl<F: RichField + Extendable<D>, const D: usize> CircuitBuilder<F, D> {
             wires_cap: self.add_virtual_cap(cap_height),
             plonk_zs_partial_products_cap: self.add_virtual_cap(cap_height),
             quotient_polys_cap: self.add_virtual_cap(cap_height),
-            openings: self.add_opening_set::<InnerC>(common_data),
+            openings: self.add_opening_set(common_data),
             opening_proof: self.add_virtual_fri_proof(num_leaves_per_oracle, fri_params),
         }
     }
 
-    fn add_opening_set<InnerC: GenericConfig<D, F = F>>(
-        &mut self,
-        common_data: &CommonCircuitData<F, D>,
-    ) -> OpeningSetTarget<D> {
+    fn add_opening_set(&mut self, common_data: &CommonCircuitData<F, D>) -> OpeningSetTarget<D> {
         let config = &common_data.config;
         let num_challenges = config.num_challenges;
         let total_partial_products = num_challenges * common_data.num_partial_products;
@@ -363,7 +357,7 @@ mod tests {
     {
         let mut builder = CircuitBuilder::<F, D>::new(config.clone());
         let mut pw = PartialWitness::new();
-        let pt = builder.add_virtual_proof_with_pis::<InnerC>(&inner_cd);
+        let pt = builder.add_virtual_proof_with_pis(&inner_cd);
         pw.set_proof_with_pis_target(&pt, &inner_proof);
 
         let inner_data = builder.add_virtual_verifier_data(inner_cd.config.fri_config.cap_height);
diff --git a/starky/src/permutation.rs b/starky/src/permutation.rs
index bba42712..4f5d2921 100644
--- a/starky/src/permutation.rs
+++ b/starky/src/permutation.rs
@@ -14,7 +14,7 @@ use plonky2::iop::challenger::{Challenger, RecursiveChallenger};
 use plonky2::iop::ext_target::ExtensionTarget;
 use plonky2::iop::target::Target;
 use plonky2::plonk::circuit_builder::CircuitBuilder;
-use plonky2::plonk::config::{AlgebraicHasher, GenericConfig, Hasher};
+use plonky2::plonk::config::{AlgebraicHasher, Hasher};
 use plonky2::util::reducing::{ReducingFactor, ReducingFactorTarget};
 use plonky2_maybe_rayon::*;
 
@@ -63,7 +63,7 @@ pub(crate) struct PermutationChallengeSet<T: Copy> {
 }
 
 /// Compute all Z polynomials (for permutation arguments).
-pub(crate) fn compute_permutation_z_polys<F, C, S, const D: usize>(
+pub(crate) fn compute_permutation_z_polys<F, S, const D: usize>(
     stark: &S,
     config: &StarkConfig,
     trace_poly_values: &[PolynomialValues<F>],
@@ -71,7 +71,6 @@ pub(crate) fn compute_permutation_z_polys<F, C, S, const D: usize>(
 ) -> Vec<PolynomialValues<F>>
 where
     F: RichField + Extendable<D>,
-    C: GenericConfig<D, F = F>,
     S: Stark<F, D>,
 {
     let permutation_pairs = stark.permutation_pairs();
@@ -260,7 +259,7 @@ where
     pub(crate) permutation_challenge_sets: Vec<PermutationChallengeSet<F>>,
 }
 
-pub(crate) fn eval_permutation_checks<F, FE, P, C, S, const D: usize, const D2: usize>(
+pub(crate) fn eval_permutation_checks<F, FE, P, S, const D: usize, const D2: usize>(
     stark: &S,
     config: &StarkConfig,
     vars: StarkEvaluationVars<FE, P, { S::COLUMNS }, { S::PUBLIC_INPUTS }>,
@@ -270,7 +269,6 @@ pub(crate) fn eval_permutation_checks<F, FE, P, C, S, const D: usize, const D2:
     F: RichField + Extendable<D>,
     FE: FieldExtension<D2, BaseField = F>,
     P: PackedField<Scalar = FE>,
-    C: GenericConfig<D, F = F>,
     S: Stark<F, D>,
     [(); S::COLUMNS]:,
     [(); S::PUBLIC_INPUTS]:,
diff --git a/starky/src/prover.rs b/starky/src/prover.rs
index 2350830c..2f541d56 100644
--- a/starky/src/prover.rs
+++ b/starky/src/prover.rs
@@ -80,7 +80,7 @@ where
             config.num_challenges,
             stark.permutation_batch_size(),
         );
-        let permutation_z_polys = compute_permutation_z_polys::<F, C, S, D>(
+        let permutation_z_polys = compute_permutation_z_polys::<F, S, D>(
             &stark,
             config,
             &trace_poly_values,
@@ -285,7 +285,7 @@ where
                     permutation_challenge_sets: permutation_challenge_sets.to_vec(),
                 },
             );
-            eval_vanishing_poly::<F, F, P, C, S, D, 1>(
+            eval_vanishing_poly::<F, F, P, S, D, 1>(
                 stark,
                 config,
                 vars,
@@ -303,7 +303,7 @@ where
 
             let num_challenges = alphas.len();
 
-            (0..P::WIDTH).into_iter().map(move |i| {
+            (0..P::WIDTH).map(move |i| {
                 (0..num_challenges)
                     .map(|j| constraints_evals[j].as_slice()[i])
                     .collect()
diff --git a/starky/src/recursive_verifier.rs b/starky/src/recursive_verifier.rs
index d080f80f..11d83479 100644
--- a/starky/src/recursive_verifier.rs
+++ b/starky/src/recursive_verifier.rs
@@ -128,7 +128,7 @@ fn verify_stark_proof_with_challenges_circuit<
     with_context!(
         builder,
         "evaluate vanishing polynomial",
-        eval_vanishing_poly_circuit::<F, C, S, D>(
+        eval_vanishing_poly_circuit::<F, S, D>(
             builder,
             &stark,
             inner_config,
diff --git a/starky/src/vanishing_poly.rs b/starky/src/vanishing_poly.rs
index 906b8980..a3fe753e 100644
--- a/starky/src/vanishing_poly.rs
+++ b/starky/src/vanishing_poly.rs
@@ -2,7 +2,6 @@ use plonky2::field::extension::{Extendable, FieldExtension};
 use plonky2::field::packed::PackedField;
 use plonky2::hash::hash_types::RichField;
 use plonky2::plonk::circuit_builder::CircuitBuilder;
-use plonky2::plonk::config::GenericConfig;
 
 use crate::config::StarkConfig;
 use crate::constraint_consumer::{ConstraintConsumer, RecursiveConstraintConsumer};
@@ -13,7 +12,7 @@ use crate::permutation::{
 use crate::stark::Stark;
 use crate::vars::{StarkEvaluationTargets, StarkEvaluationVars};
 
-pub(crate) fn eval_vanishing_poly<F, FE, P, C, S, const D: usize, const D2: usize>(
+pub(crate) fn eval_vanishing_poly<F, FE, P, S, const D: usize, const D2: usize>(
     stark: &S,
     config: &StarkConfig,
     vars: StarkEvaluationVars<FE, P, { S::COLUMNS }, { S::PUBLIC_INPUTS }>,
@@ -23,14 +22,13 @@ pub(crate) fn eval_vanishing_poly<F, FE, P, C, S, const D: usize, const D2: usiz
     F: RichField + Extendable<D>,
     FE: FieldExtension<D2, BaseField = F>,
     P: PackedField<Scalar = FE>,
-    C: GenericConfig<D, F = F>,
     S: Stark<F, D>,
     [(); S::COLUMNS]:,
     [(); S::PUBLIC_INPUTS]:,
 {
     stark.eval_packed_generic(vars, consumer);
     if let Some(permutation_data) = permutation_data {
-        eval_permutation_checks::<F, FE, P, C, S, D, D2>(
+        eval_permutation_checks::<F, FE, P, S, D, D2>(
             stark,
             config,
             vars,
@@ -40,7 +38,7 @@ pub(crate) fn eval_vanishing_poly<F, FE, P, C, S, const D: usize, const D2: usiz
     }
 }
 
-pub(crate) fn eval_vanishing_poly_circuit<F, C, S, const D: usize>(
+pub(crate) fn eval_vanishing_poly_circuit<F, S, const D: usize>(
     builder: &mut CircuitBuilder<F, D>,
     stark: &S,
     config: &StarkConfig,
@@ -49,7 +47,6 @@ pub(crate) fn eval_vanishing_poly_circuit<F, C, S, const D: usize>(
     consumer: &mut RecursiveConstraintConsumer<F, D>,
 ) where
     F: RichField + Extendable<D>,
-    C: GenericConfig<D, F = F>,
     S: Stark<F, D>,
     [(); S::COLUMNS]:,
     [(); S::PUBLIC_INPUTS]:,
diff --git a/starky/src/verifier.rs b/starky/src/verifier.rs
index 443fcb31..6930c7cb 100644
--- a/starky/src/verifier.rs
+++ b/starky/src/verifier.rs
@@ -98,7 +98,7 @@ where
         next_zs: permutation_zs_next.as_ref().unwrap().clone(),
         permutation_challenge_sets: challenges.permutation_challenge_sets.unwrap(),
     });
-    eval_vanishing_poly::<F, F::Extension, F::Extension, C, S, D, D>(
+    eval_vanishing_poly::<F, F::Extension, F::Extension, S, D, D>(
         &stark,
         config,
         vars,