rippled (XRP Ledger server) Version 2.2.0

Version 2.2.0 introduces five new amendments:

• PriceOracle amendment: Implements a price oracle as defined in the XLS-47 spec. A Price Oracle is used to bring real-world data, such as market prices, onto the blockchain, enabling dApps to access and utilize information that resides outside the blockchain. #4789

• fixEmptyDID amendment: Modifies the behavior of the DID amendment: adds an additional check to ensure that DIDs are non-empty when created, and returns a tecEMPTY_DID error if the DID would be empty. #4950

• fixXChainRewardRounding amendment: Modifies the behavior of the XChainBridge amendment: fixes rounding so reward shares are always rounded down, even when the fixUniversalNumber amendment is active. #4933

• fixPreviousTxnID amendment: Adds PreviousTxnID and PreviousTxnLgrSequence as fields to all ledger entries that did not already have them included (DirectoryNode, Amendments, FeeSettings, NegativeUNL, and AMM). Existing ledger entries will gain the fields whenever transactions modify those entries. #4751.

• fixAMMv1_1 amendment: Fixes AMM offer rounding and low quality order book offers from blocking the AMM. #4983

Note for Clio operators

If you operate a Clio server, Clio needs to be updated to 2.1.2 before updating to rippled 2.2.0. Clio will be blocked if it is not updated.

What's Changed

Full Release Notes for 2.2.0 (xrpl.org)

• PriceOracle: Price Oracle (XLS-47d) by @gregtatcam in #4789
• Fix gcc 13 compile error in Price Oracle unit-test by @gregtatcam in #4932
• Proposed 2.2.0-b1 by @seelabs in #4935
• Remove default constructor from SecretKey class by @ckeshava in #4607
• Fast base58 codec by @seelabs in #4327
• feat: add user version of feature RPC by @mvadari in #4781
• Add STCurrency.h to xrpl_core to fix clio build by @gregtatcam in #4939
• Embed patched recipe for RocksDB 6.29.5 by @thejohnfreeman in #4947
• fix: order book update variable swap: by @seelabs in #4890
• Fix workflows by @thejohnfreeman in #4948
• Upgrade to xxhash 0.8.2 as conan dependency, enable SIMD hashing by @Bronek in #4893
• Update remaining actions by @thejohnfreeman in #4949
• Relocate RPCErr to ripple/protocol - fix previous PR by @legleux in #4940
• test: env unit test RPC errors return a unique result: by @ximinez in #4887
• Fix workflows by @thejohnfreeman in #4951
• RIPD-1847 fix select query condition by @oleks-rip in #4955
• Add thefixEmptyDID amendment by @mvadari in #4950
• Enforce no duplicate slots from incoming connections by @Bronek in #4944
• Remove zaphod.alloy.ee from bootstrap by @alloynetworks in #4903
• Write proper forAllApiVersions used in NetworkOPs.cpp by @Bronek in #4833
• Don't reach consensus as fast if no other proposals seen. by @mtrippled in #4763
• Fix sidechain reward share rounding with new number class by @seelabs in #4933
• Proposed 2.1.1 by @seelabs in #4968
• chore: change Github Action triggers for build/test jobs by @ximinez in #4956
• Merge master (v2.1.1) into develop by @ximinez in #4970
• [TRIVIAL] chore: Default validator-keys-tool to build from master branch by @ximinez in #4943
• [TRIVIAL] Remove unused lambdas from MultiApiJson_test by @Bronek in #4980
• Proposed 2.2.0-b2 by @ximinez in #4979
• amendment fix to add sfPreviousTxnID/sfPreviousTxnLgrSequence to all ledger objects by @mvadari in #4751
• Unit tests for AMM offer overflow fix by @Bronek in #4986
• Codecov coverage reporting fixes by @Bronek in #4977
• Increase test coverage by @thejohnfreeman in #4971
• AMM Unit tests: rounding down of equal asset deposit LPToken calculation by @ckeshava in #4982
• fix: resolve database deadlock: by @seelabs in #4989
• [TRIVIAL] fix: Remove redundant STAmount conversion in test by @ximinez in #4996
• Proposed 2.2.0-b3 by @ximinez in #4995
• Less contentious restructure by @thejohnfreeman in #4966
• Add RPC error checking support to unit tests by @ximinez in #4987
• [TRIVIAL] chore: fix typos in comments by @xiaoxianBoy in #4958
• fix: AMM swap rounding by @seelabs in #5002
• Proposed 2.2.0-rc1 by @ximinez in #5003
• Update list of maintainers: by @nbougalis in #4984
• Remove flow assert: by @seelabs in #5009
• [trivial] Add missing includes by @thejohnfreeman in #5011
• Add external directory for Conan recipe's exports by @legleux in #5006
• Price Oracle: validate input parameters and extend test coverage: by @gregtatcam in #5013
• Update CONTRIBUTING.md by @dangell7 in #4904
• fixAMMv1_1: improve the quality of the generated AMM offer in certain cases by @gregtatcam in #4983
• Fix offer crossing with transfer fee over AMM and other fixes by @gregtatcam in #5016
• Proposed 2.2.0-rc2 by @seelabs in #5018
• Fix Oracle's token pair deterministic order by @gregtatcam in #5021
• Add xrpl.libpb as an exported lib by @godexsoft in #5022
• Proposed 2.2.0-rc3 by @seelabs in #5023
• Proposed 2.2.0 by @seelabs in #5037

New Contributors

• @oleks-rip made their first contribution in #4955
• @xiaoxianBoy made their first contribution in #4958
• @godexsoft made their first contribution in #5022

Full Changelog: 2.1.0...2.2.0