Protocol 28 (CAP-0084): muxed contract address support#17
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Add support for the new SC_ADDRESS_TYPE_MUXED_CONTRACT address type introduced by CAP-0084, behind the CAP_0084 build flag (enabled with the unsafe next-protocol configuration). - Bump the protocol-curr XDR submodule to pick up the muxed contract address definition, and the soroban (p27) submodule for SAC support that de-muxes the destination and surfaces the muxed id via the `to_muxed_id` transfer event. - Wire up the CAP_0084 conditional in configure.ac, common.mk and src/Makefile.am (C++ and XDR feature flags). - Hash and JSON-serialize the new address type (LedgerHashUtils, XDRCereal). - Refresh the p27 cargo dep-tree expectation. - Add a SAC transfer-to-muxed-contract test exercising both native and custom assets. Fund the test account with enough native balance to stay above its account reserve after the cumulative native transfers.
This was referenced Jun 25, 2026
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Summary
Adds support for the new
SC_ADDRESS_TYPE_MUXED_CONTRACTaddress type introduced by CAP-0084, gated behind theCAP_0084build flag (enabled with--enable-next-protocol-version-unsafe-for-production).Changes
src/protocol-curr/xdrfor the muxed-contract address XDR, andsrc/rust/soroban/p27for SAC support that de-muxes the destination to the underlying contract (for the balance) and surfaces the muxed id via theto_muxed_idtransfer event.CAP_0084conditional inconfigure.ac,common.mk, andsrc/Makefile.am(C++ and XDR feature flags).LedgerHashUtils) and JSON-serialize (XDRCereal) the new address type.p27cargo dep-tree expectation.Notes
src/rust/soroban/p27submodule currently points at a temporary CAP-0084 spike, and its dep tree references ars-stellar-xdrfork; these will be replaced with upstream revisions before this is mergeable.🤖 Generated with Claude Code