develop default ChrisChiasson-feature/issue-123-complex-numbers-with-vars StanHeaders_2.21 StanHeaders_2.23 after_var_value_merge autoformat/build/test-test-format bugfix/issue-93-testing-view-metaprograms bugfix/issue-102-test_fixture_test_gradients_fix bugfix/issue-133-test-failures bugfix/issue-995-fix-bernoulli-glm-test bugfix/issue-1179-exponential_log-bounds-checking bugfix/issue-1763-propto-tests bugfix/issue-1833-t0-gradients bugfix/issue-1839-makefile-sh-error bugfix/issue-1855-reverse-mode-gradients bugfix/issue-1861-scalars-vs-vectors bugfix/issue-1979-hmm_marginal bugfix/issue-2036 bugfix/issue-2037 bugfix/issue-2112-hmm_rng_index bugfix/issue-2708-map-rect-fail bugfix/0346 bugfix/1063-std-lgamma bugfix/1152-algebra_solver-lambdas bugfix/1669-multiply-dim-size-0 bugfix/1750-autodiff-instance bugfix/1809-pow bugfix/1986-binomial-edge-cases build/default-cc build/distr-tests build/errors build/errwarns build/precompiled-headers cholesky_gpu_funcs cicd-enable-gpu-async clang-tidy/braces-defaults_constructor-range_for_loops cleanup/ad_tape_observer-emplace cleanup/adj_jac_apply_construction cleanup/cleanup_rev_tests cleanup/constrains cleanup/eigen-meta1 cleanup/eigen-meta2 cleanup/gaus-interop cleanup/general-z-u cleanup/mem_alloc cleanup/operands-and-partials cleanup/ops_and_partials cleanup/parallel-v5 cleanup/pass-var-by-value cleanup/proto-parallel-v3 cleanup/proto-parallel-v6 cleanup/reduce_sum-enumerable cleanup/require_base cleanup/vec-concat cleanup/1230-better-intermediates-prob-p2 cleanup/1696-integer-parameters cmake code-cleanup/chain-final code-cleanup/issue-937-flatten distribution_tests_refactor faeture/1948_use_jumbo_prim feature/a-few-varmats-alt feature/a_few_varmats feature/address-sanitizer feature/adjoint-ode feature/adjoint-odes feature/apply-jac-ops feature/as_array_or_scalar-passing-input feature/automatic-autodiff-testing feature/check_matching_dims-for-arrays feature/christopher22/lambertw feature/cleanup-ad_tape_observer feature/complex-eigen-mul feature/complex-meta-addons feature/concept-chainable-allocator feature/contributor-guide feature/convert-to-tadj1-changes feature/convert_to_tadj1 feature/convert_to_tadj2 feature/daniel-windows feature/eigen-aligned-malloc feature/eigen-allocs-with-stuff feature/eigen-allocs feature/eigen-specializations-products feature/eigen-vari-adj-jac-apply-proto feature/eigen-vari-ops-adj-jac-apply feature/eigen-vari-ops-adj-jac-apply2 feature/eigen-vari-ops-vari-deduction feature/eigen-vari-ops feature/eigen-vari feature/expressions-tests feature/faster-ad-tls-v2 feature/faster-ad-tls-v4-windows feature/faster-ad-tls-v4 feature/faster-ad-tls feature/flto feature/for_each-stuff feature/force-inline-alloc feature/forward_as_2019 feature/gp-exp-vectorized-specialization feature/indexing-assign feature/issue-38-multi_normal_sufficient feature/issue-45-vectorized-rngs feature/issue-45-vectorized_rngs_continuous feature/issue-45-vectorized_rngs_continuous2 feature/issue-56-incorrect-behaviour-of-ccfds feature/issue-59-agrad-rev-matrix-nan feature/issue-59-test-nan feature/issue-80-transforms feature/issue-86-expose-matrix-normal feature/issue-87-nan-distribution-tests feature/issue-90-poisson-logcdf feature/issue-105-vectorize-ordered_logistic_log feature/issue-123-complex feature/issue-144-adding_SS_functions_for_nlmer feature/issue-202-vectorize-all-binary feature/issue-344-reverse-vectors feature/issue-467-to_matrix feature/issue-565-vari-dealloc feature/issue-617-make feature/issue-755-laplace feature/issue-838-linseq feature/issue-888-quadratic_optimizer feature/issue-937-flatten-meta-again feature/issue-937-flatten-meta-the-third feature/issue-937-flatten-meta-third feature/issue-962-bivar-norm feature/issue-1012-binorm-copula-cdf feature/issue-1156-json-input feature/issue-1246-gp_dot_prod_cov_matrix_Sigma feature/issue-1257-diff_algebra_solver feature/issue-1344-expose-matrix-normal feature/issue-1846-hmm_latent_prob feature/issue-1846-hmm_latent feature/issue-1852-benchmark feature/issue-1852-google-benchmark feature/issue-speedup-rev feature/lambert-return-double feature/lambertw feature/lambertw0-fixes feature/log_mix_arr feature/map_rect-cpp17 feature/map_rect-fail-windows feature/matrix_sqrt feature/mixed_type feature/more_rework_adj_jac_apply feature/multi-expression-vari-views feature/new-adj-tadj-var_value feature/noop-checks feature/ode-test-functors-move feature/op_vari feature/openMP feature/opencl-compilesizes feature/operands_partials_less_copies feature/optimize_jenkins feature/par-map-v2 feature/parallel_for_each feature/parameter-pack-odes feature/plus-cleanup-tests feature/prim-jumbo-tests feature/profiling feature/reduce_sum-funcs feature/reduce_sum-functions feature/refactor-nested feature/require-eigen-matrix feature/sparse-cholesky feature/threads_arg feature/var-template feature/var-templates feature/vari-base-dynamic-cast feature/vari-base-eigen feature/vari-base-templates feature/vari-base-virtual feature/vari-custom-visitor feature/vari-eigen-slices feature/vari-move-constructors feature/vari-template-variant feature/vari-variant2 feature/vari-view-eigen feature/vari_value-arena-matrix feature/varmat-cholesky feature/varmat-elt_multiply feature/varmat-multiply feature/varmat-operatorminus feature/varmat-operatorplus feature/varmat-ops1 feature/zi_dist feature/0123-complex-1 feature/0123-complex-part-2 feature/0123-complex-spec feature/0123-complex-var feature/0462-plus-plus-op feature/0493-log-regress-fun feature/0565-remove-var_alloc_stack_ feature/0661-automated-style feature/1539-softmax-tune feature/1886-test-util-cleanup fix/arena_t-promote-var-matrix fix/elt-mul-mem fix/multiply-noalias fix/require-not-docs fix/require_t_ellipses fix/test-compound-expressions fix/test-memory-leaks fixup/1829-complex-eigen-macro-traits generalize_exp_mod_normal generalized_grad_tr_mat gh-pages gpu_matrix_multiply hmm-marginal-fwd integrate_1d-improvements iwyu jenkins-debug jenkins-use-windows-for-gpu jenkins_fail_fast master meta_retrn_steve_debug mpi_errors mpi_warmup_framework mpi_warmup_v2 new-static-poc new_complex_var nmas null ode33-develop parallel-ad-tape-3 perf/multiply-vari perf/operands_and_partials_deux perf/runtime_matrix_check_flags perf/static-stack perf/threaded-ad2 proto-parallel-v3 refactor/auto-scal-probs refactor/cov-corr-constrain refactor/jenkins_pipeline refactor/op_vari release_notes release/v2.17.1 release/v2.18.0 release/v2.18.1 release/v2.19.0 release/v2.19.1 release/v2.20.0 release/v2.21.0 release/v3.0.0 release/v3.1.0 release/v3.2.0 release/v3.3.0 release/v3.4.0-rc1 revert seantest/faster-ad-tls-v3 stancon/syclik status-quo-multiple-tu syclik/forward-mode test_develop toss/compiler-optims toss/flto-setup toss/full-zero-chains tossme/ad_tape_observer-inline-makeunique tossme/check-memsize tossme/check_less_stacks tossme/op-vari-longdouble tossme/tuple-zero-stacks tossme/vari-explicit-getter tossme/vari-virtual-nochain try-efficient_hmm_gradient try-laplace_approximation try-laplace_approximation2 tutorial-lunch var_value_bernoulli_logit_poisson_log_glms vari-base-eigen-slices