Avoid some unneeded dictionary operations - #997
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KevinJump
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Aug 5, 2026
* Avoid some unneeded dictionary operations (#997) (cherry picked from commit 1d06d7c) * Use new Lock & make internal + private classes sealed to avoid virtual dispatch (#998) (cherry picked from commit 3109ab6) * Changelog for the v17 perf ports (#997, #998) Records the SyncChangeInfo sealing, which is a (minor) extender API change: it stays protected so handlers can still construct one from an IsItemCurrentAsync override, but can no longer be derived from. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> --------- Co-authored-by: Henrik <hg@impact.dk> Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
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Every lookup & write requires the creation of a hashkey and lookup in the buckets, so reduce that as much as possible