Versioning changeddocs/2026-07-28/learn/versioning
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1818 receive backwards compatible changes.
1919* **Final**: past, complete specifications that will not be changed.
2020
21The **current** protocol version is [**2026-07-28**](/specification/2026-07-28/).
21The **current** protocol version is [**2026-07-28**](/specification/2026-07-28.md).
2222
2323## Feature States
2424
2525Individual features of the specification may additionally be marked as
2626**Deprecated** under the
27[feature lifecycle and deprecation policy](/community/feature-lifecycle):
27[feature lifecycle and deprecation policy](/community/feature-lifecycle.md):
2828the feature remains part of the specification, but is scheduled for removal.
2929Deprecated features document a migration path (or state that none is required)
3030and remain in the specification for at least twelve months, or at least
3131ninety days under the policy's
32[expedited-removal exception](/community/feature-lifecycle#expedited-removal),
32[expedited-removal exception](/community/feature-lifecycle.md#expedited-removal),
3333before they become eligible for removal, after which they may be **Removed**
3434in a future revision.
3535
3636Features that are currently Deprecated are listed in the
37[deprecated features registry](/specification/2026-07-28/deprecated).
37[deprecated features registry](/specification/2026-07-28/deprecated.md).
3838
3939## Negotiation
4040
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5959
6060For interoperability with servers and clients that implement the
6161handshake-based protocol revisions (`2025-11-25` and earlier), see
62[Backward Compatibility](/specification/2026-07-28/basic/versioning#backward-compatibility-with-initialization-based-versions).
62[Backward Compatibility](/specification/2026-07-28/basic/versioning.md#backward-compatibility-with-initialization-based-versions).
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