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Add Protocol 26 and Protocol 27 software versions#2477

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sisuresh:software-versions-p26-p27
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Add Protocol 26 and Protocol 27 software versions#2477
sisuresh wants to merge 1 commit into
stellar:mainfrom
sisuresh:software-versions-p26-p27

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@sisuresh sisuresh commented Jun 6, 2026

Description

Adds the missing release tables to the Software Versions page:

  • Protocol 27 "Zipper" (Testnet, June 18, 2026) — lists the packages released so far (Stellar Core 27.0.0, Rust XDR 27.0.0, Host Environment 27.0.0, JS Stellar SDK v16.0.0-rc.1); everything not yet released is marked TBD. Release notes link CAP-71 and the Zipper upgrade guide.
  • Protocol 26 "Yardstick" (Mainnet, May 6, 2026) and (Testnet, April 16, 2026) — latest stable release on each product's 26.x line, with CAPs 73/77/78/79/80/82 and the Yardstick upgrade guide linked in the release notes.

Notes for reviewers:

  • The Stellar Horizon Client & TxnBuild row jumps from v24.0.0 to v0.5.0 — the Go SDK moved from the archived stellar/go monorepo to stellar/go-stellar-sdk with restarted v0.x versioning.
  • JS Stellar Base is TBD for Protocol 27, though per the js-stellar-sdk v16.0.0-rc.1 notes the base package is being merged into the SDK — happy to change it to N/A if preferred.
  • CAP-81 (TTL-Ordered Eviction) is intentionally excluded from the Protocol 26 list: its header targets protocol 26 but it is Accepted (not Implemented) and absent from the upgrade guide and core v26.0.0 release notes.
  • Every version cell was checked against the GitHub releases / crates.io / npm registries for the respective product.

@sisuresh sisuresh marked this pull request as ready for review June 6, 2026 01:09
Copilot AI review requested due to automatic review settings June 6, 2026 01:09
@sisuresh sisuresh requested a review from anupsdf June 6, 2026 01:09
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Pull request overview

Adds missing Protocol 26 and Protocol 27 release tables to the Software Versions documentation so developers can see recommended package versions and related upgrade references for Yardstick (P26) and Zipper (P27).

Changes:

  • Add a Protocol 27 (Testnet) section with a software/version table and links to core release notes, upgrade guide, and CAP-71.
  • Add Protocol 26 (Mainnet and Testnet) sections with software/version tables and links to the upgrade guide and relevant CAPs.

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New features in Yardstick, Protocol 26:

- [Release Notes](https://github.com/stellar/stellar-core/releases/tag/v26.0.0)

New features in Yardstick, Protocol 26:

- [Release Notes](https://github.com/stellar/stellar-core/releases/tag/v26.0.0)
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