20.0.0-rc1

What's Changed

• Make RecordedAuthPayload consistently return None for invoker. by @dmkozh in #900
• Expiration-related fixes by @dmkozh in #899
• Turn dynamic borrow panics into HostErrors by @graydon in #925
• Use Ed25519 verify_strict function rather than just verify, fix #857 by @graydon in #927
• Misc int32 issues by @graydon in #926
• Enforce object handle integrity when inserting into containers, fix #569 by @graydon in #928
• Add testcase for out-of-order scmaps, fix #223. by @graydon in #929
• Add a function to compute the rent fee. by @dmkozh in #905
• Use host.err for auth error by @sisuresh in #931
• Add a smoke test for recording auth for create contract host fn. by @dmkozh in #932
• Stop treating storage errors as missing entries by @sisuresh in #934
• Refactor authorization manager to only maintain mutable borrow on minimal amount of fields by @dmkozh in #938
• Bump xdr by @sisuresh in #943
• Add rent bumps to the SAC by @sisuresh in #936
• Add is_admin function by @sisuresh in #933
• Bump xdr by @dmkozh in #944
• Add function to compute the write fee based on the ledger size. by @dmkozh in #941
• Prohibit using disjoint signatures to cover the auth tree. by @dmkozh in #942
• Enforce DepthLimiter in the Host to avoid stack overflow by @jayz22 in #904
• Relative objects in wasm by @graydon in #947
• Adapt to ResourceLimiter, replacing mem_fuel metering by @jayz22 in #950
• Make del_contract_data no-op for removing non-existent instance storage key. by @dmkozh in #951
• Add "tracy" feature to enable Tracy profiler, with some basic annotat… by @graydon in #952
• Update host to account for the XDR changes. by @dmkozh in #954
• Update rust-version by @github-actions in #948
• Adapt to SCError change to be an enum, with ContractError(u32) by @graydon in #955
• Make some host errors non-recoverable in try_call. by @dmkozh in #945
• Fix panic-string-logging code path broken by recent dynamic-borrow fix. by @graydon in #960
• Add soroban-bench-utils, add benchmark tests to measure metering accuracy by @jayz22 in #956
• Bump env xdr and do the fee library changes corresponding to config changes by @dmkozh in #965
• Bump env xdr by @dmkozh in #966
• Remove event topic limits by @jayz22 in #959
• Bump env xdr by @dmkozh in #969
• Unify/fix expiration bump logic in host. by @dmkozh in #957
• Add new tests for error escalation from contract calls. by @graydon in #967
• Add a helper that invokes a host function 'end-to-end' by @dmkozh in #964
• Add helpers for container bulk init; applies to auth metering by @jayz22 in #975
• Switch some auth errors from Internal to InvalidInput. by @dmkozh in #976
• Enable post-MVP WASM ops (sign-ext and mutable-globals), fix #968. by @graydon in #979
• More token tests by @sisuresh in #974
• Alloc example by @graydon in #972
• mop up some residual uses of format strings in errors (no longer supported) by @graydon in #961
• Add wasm for upgrade write-bytes contract by @sisuresh in #983
• Scale the linear cost model coefficient; improve model fitting by @jayz22 in #982
• Error if bumping past max_entry_expiration and and host function to retrieve max_entry_expiration by @sisuresh in #985
• Make has checks to properly populate the storage map in recording mode by @dmkozh in #986
• Clean up budget cost types by @jayz22 in #984
• Add debug events to storage error reporting. by @dmkozh in #987
• Switch to stable rust-analyzer in CI by @jayz22 in #988
• add some comments and tests to env-common/symbol.rs by @graydon in #990
• Upgrade dalek crates to new stable versions. by @graydon in #993
• Add an option to return an error when encountering non-root auth in recording mode. by @dmkozh in #991
• Reject env.json if there are duplicate export names, fix #189 by @graydon in #994
• Tighten signature of unchecked_visit_val_obj, fix #595 by @graydon in #997
• Tighten dependencies further by @graydon in #999
• Fix incorrect argument name by @dmkozh in #1000
• Bump env xdr by @dmkozh in #1003
• Tighten up Map and Vector and metering coverage by @jayz22 in #1001
• Store dummy instance for test contracts. by @dmkozh in #1005
• Update XDR to take change that removes SCSpecTypeSet by @graydon in #1009
• Fix comparison in Tag::is_object by @brson in #1012
• Fix calibration due to delak change by @jayz22 in #1004
• Charge write fees for expiration entry bumps. by @dmkozh in #1010
• Reduce the expiration entry write size. by @dmkozh in #1016
• Refactor host to support the new expiration ledger approach. by @dmkozh in #1015
• Add lifetime threshold by @sisuresh in #1014
• Enable build workflow for merge groups by @leighmcculloch in #1018
• Remove key size from rent change computation. by @dmkozh in #1019
• Take change from txSOROBAN_RESOURCE_LIMIT_EXCEEDED to txSOROBAN_INVALID by @graydon in #1022
• Add ExpirationEntry support by @sisuresh in #1023
• Add git rev dep check to ci by @leighmcculloch in #1025
• Fix encode contract events metering by @jayz22 in #1026
• trim deps by @graydon in #1031
• Reject vals with invalid tags, fix #1029 by @graydon in #1033
• host: fix EXPIRATION_ENTRY_SIZE constant by @2opremio in #1034
• Avoid iloop externalizing diagnostics for invalid references by @brson in #1028
• Add "coverage" Makefile target for lcov.info, add a test that extends coverage by @graydon in #1038
• Fix asset-code rendering in native contract. by @graydon in #1041
• Fix rent changes extraction bug by @jayz22 in #1043
• Graydon code review by @graydon in #1044
• Jay code review by @jayz22 in #1045
• Bump xdr and use curr instead of next by @sisuresh in #1048
• Trivial xdr bump by @sisuresh in #1050
• Tighten wasm interface version checks, and do on upload. Fix #1052. by @graydon in #1053
• Update wasmi to 0.31.0-soroban by @jayz22 in #1054
• Bump version to 20.0.0-rc1 by @github-actions in #1055

New Contributors

• @2opremio made their first contribution in #1034

Full Changelog: v0.0.17...v20.0.0-rc1