Add CAP-86 - Host functions for sparse Symbol-keyed map creation and unpacking#1976
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Pull request overview
Adds a new draft Core Advancement Proposal (CAP-86) to the Stellar protocol spec repo, documenting new Soroban host functions intended to support migration-friendly handling of Symbol-keyed maps used by #[contracttype] UDTs.
Changes:
- Adds CAP-0086 as a new Draft CAP describing
sparse_map_new_from_linear_memoryandsparse_map_unpack_to_linear_memory. - Updates
core/README.mdto index CAP-0086 in the Draft Proposals table.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 9 comments.
| File | Description |
|---|---|
| core/README.md | Adds CAP-0086 to the Draft Proposals index table. |
| core/cap-0086.md | New CAP draft specifying two new sparse map host functions and rationale/examples for UDT migration. |
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
sisuresh
approved these changes
Jul 9, 2026
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