v2026.07.01

What's Changed

• extend lattigo.chebyshev with domain start/end by @AlexanderViand in #3000
• fix cleanup of old nightly releases by @j2kun in #3012
• Added cache to AttachNTTRoots pass to speed it up by @crockeea in #3019
• Add support for pooling_ncw_sum by @mdgrs in #2995
• Suppress warnings generated when compiling with -c opt by @crockeea in #3020
• Fix mutability bug in Codegen by @mdgrs in #3016
• Support batchnorm1d without fusion by @copybara-service[bot] in #3004
• copybara: fix preprocessing util import rewrite rule by @copybara-service[bot] in #3021
• support canonicalizing linalg.generics that transpose by @copybara-service[bot] in #3013
• Resolve TODOs from #2157 by @crockeea in #2977
• fuse batchnorm1d into a preceding linear layer by @copybara-service[bot] in #3006
• Bump the npm_and_yarn group across 1 directory with 3 updates by @dependabot[bot] in #2901
• lower debug.validate to add-debug-port calls by @copybara-service[bot] in #3002
• fix: fixes shift value in LowerPolynomialEval by @copybara-service[bot] in #3027
• lower debug.validate for plaintext pipeline by @copybara-service[bot] in #3005
• lower debug.validate in secret lowerings by @copybara-service[bot] in #3008
• Add lowering for RNSExtractSliceOp and PolynomialExtractSliceOp by @crockeea in #3018
• Move KeySwitchInnerOp from CKKS dialect to LWE dialect by @crockeea in #3017
• DimensionAnalysis: fix inheritance bug by @copybara-service[bot] in #3032
• python: move front/backend to extras by @AlexanderViand in #3026
• fix: add regression test for #3003 with first-mod-bits by @copybara-service[bot] in #3044
• OpenFHE codegen for torch sigmoid + cf.assert on plaintexts by @j2kun in #3039
• e2e tests of debug.validate lowerings & OpenFHE emitter improvements by @copybara-service[bot] in #3010
• deps: bump action-gh-release to 3.0.0 to fix release hang by @asraa in #3049
• Add level analysis interfaces by @copybara-service[bot] in #3029
• lattigo: make emitter more resilient to unused vars by @copybara-service[bot] in #3035
• Fix zdiv_r double-comparison bug during AST translation. Emit arith::RemSIOp directly. by @copybara-service[bot] in #3050
• lattigo: alloc-to-inplace level and dominance fixes by @copybara-service[bot] in #3034
• lattigo: extend alloc-to-inplace to support bufferization and loops by @copybara-service[bot] in #3033
• Add PreprocessingAnalysis by @copybara-service[bot] in #3051
• Add emitter handlers for Boolean OR and XOR operations to compile CCMM by @copybara-service[bot] in #3057
• Orbit's Level-Scale-Aware ILP Bootstrap and Rescale Placement by @edwjchen in #2979
• Allow implement-rotate-and-reduce to unroll via flag by @copybara-service[bot] in #3038
• Fix a precision error in the Bicyclic matrix multiplication (CCMM) pipeline, and add 3-backend E2E integration test coverage. by @copybara-service[bot] in #3062
• Fix breakage due to llvm/llvm-project pull/197316 by @copybara-service[bot] in #3063
• misc changes to support optimal bufferization by @copybara-service[bot] in #3036
• Add guards to prevent lowering eval-form polynomial constants by @crockeea in #3056
• Re-enable alloc-to-inplace for lattigo by default by @copybara-service[bot] in #3030
• Added ModArith::LiftOp by @crockeea in #3066
• emitter: support custom step values in scf.for loops by @copybara-service[bot] in #3081
• Change MNIST test to use rolled kernels by @copybara-service[bot] in #2971
• Fix use-of-uninitialized-value error and rank mismatch in plaintext bicyclic matmul test. by @copybara-service[bot] in #3083
• Add LimbwiseMappableOpInterface and LimbwiseAttrInterface by @copybara-service[bot] in #3065
• Decrease CKKS scaling factor in cc_mm test by @copybara-service[bot] in #3084
• Bump fmt dep to 12.1.0 to fix macOS build with clang 22 by @AlexanderViand in #3091
• disable flaky test, cf. #3089 by @copybara-service[bot] in #3090
• tensor_ext: support list of layouts for layout assignment by @copybara-service[bot] in #3092
• fix: fix issues with layout codegen by @copybara-service[bot] in #3093
• Optimize APInt factorization for 64-bit ints by @copybara-service[bot] in #3086
• Add ModArithType folding hooks by @copybara-service[bot] in #3067
• Rewrite dilated convolutions by expanding the kernel by @mdgrs in #3041
• Add Preprocessing dialect by @copybara-service[bot] in #3052
• Removed mod_arith::ExtractOp by @crockeea in #3094
• Add an NTT/INTT and equivalence tests with OpenFHE by @copybara-service[bot] in #3088
• Use per-level logqi for CKKS mod-reduce scale analysis. by @Zohaib58 in #3080
• support DenseResourceElementsAttr in memref'ed lattigo emitter by @AlexanderViand in #2999
• conv2d: enable row interchange for 2d MIMO convolutions by @copybara-service[bot] in #3095
• Add preprocessing-to-memref by @copybara-service[bot] in #3053
• bump BCR deps for hermetic LLVM (extracted from #3048) by @copybara-service[bot] in #3098
• Remove bundled openfhe from PyPI wheel by @j2kun in #3058
• copybara: restore cereal replacement by @copybara-service[bot] in #3102
• restore python3.10 compatibility by @j2kun in #3101
• Add memref emission to OpenFHE by @copybara-service[bot] in #3087
• split-preprocessing: add lowerings for lattigo, openfhe, and LWE by @copybara-service[bot] in #3099
• python: add typing_extensions to 3.10 deps by @AlexanderViand in #3105
• Fix hermetic toolchain by @j2kun in #3048
• Enable buildbuddy in CI workflows build_and_test.yml and docs.yml by @j2kun in #3104
• use remote build when on main by @j2kun in #3107
• ci: fix flag passing by @j2kun in #3108
• use getStaticTripCount now that affine.for has it by @copybara-service[bot] in #3111
• enable RBE when PRs come from within HEIR's repo by @j2kun in #3116
• Only cache OpenFHE build in build_and_test.yml by @j2kun in #3106
• build_and_test.yml: cache venv by @j2kun in #3117
• Made ConversionUtils more robust and cover more of the tensor dialect by @crockeea in #3109
• Updated use of deprecated APIs by @crockeea in #3112
• ci: run pytest in parallel by @j2kun in #3118
• remove cp314 from the cibuildwheel config by @copybara-service[bot] in #3121
• Remove unused LLVM inliner interface from heir-opt. by @copybara-service[bot] in #3119
• split-preprocessing: use new preprocessing dialect infrastructure by @copybara-service[bot] in #3060
• add an automated comment for a user's first interaction by @j2kun in #3125
• blog post for 2026-06-18 HEIR meeting by @copybara-service[bot] in #3128
• Parse ModArith constants as modulus's bit-width by @crockeea in #3126
• first_interaction.yml: dashes to underscores by @copybara-service[bot] in #3132
• Add OpenFHE to EmitC conversion pass by @copybara-service[bot] in #3068
• [FoldConstantTensors] Set insertion point after last operation to erase by @VedantParanjape in #3130
• buildbuddy: ensure autogenerated tablegen headers are downloaded by @j2kun in #3133
• Fixed ModDown step of lwe::keySwitchInner by @crockeea in #3129
• Avoid fusing ops with only secret operands in linalg-fuse-linear-ops by @copybara-service[bot] in #3124
• enable split-preprocessing and rolled kernels for more tests by @copybara-service[bot] in #3115
• Add RNSPolynomial constant folding by @copybara-service[bot] in #3135
• remove linebreaks from first-interaction by @copybara-service[bot] in #3138
• skip first_interaction.yml for copybara bot by @AlexanderViand in #3145
• buildbuddy: add metadata (repo/branch/commit) by @AlexanderViand in #3146
• fix bug in openfhe scf.if emitter by @j2kun in #3141
• Don't install clang in cibuildwheel anymore by @j2kun in #3134

Full Changelog: v2026.06.01...v2026.07.01