DSH v0.2.1 rc.1 + rc.2: Flash-1017 Support (Oct 17, 2026)

v0.2.1 Reaches Release Candidates: rc.1 Aggregates the Series, rc.2 Adapts DeepSeek-V4.1-Flash-1017 and Adds Search/Fetch API Support.

v0.2.1-alpha.5 closed this site’s alpha-by-alpha coverage on October 16 — and on October 17 the 0.2.1 line crossed a milestone: v0.2.1-rc.1 published 2026-10-17 05:22 UTC with the Pre-release flag, the series’ first release candidate.

rc.1 is an aggregate, not a new feature drop

Per its bilingual notes, rc.1 summarizes the major user- and developer-related changes since v0.2.0-rc.2 — the whole alpha run included. This site has covered those changes individually: alpha.4 and alpha.5 are the latest two of five alpha articles. The repo’s own compare API confirms the aggregate adds nothing new: the dsh-v0.2.1-alpha.5...dsh-v0.2.1-rc.1 range (fetched 2026-10-18) contains four commits — vendor package bumps and the release chores themselves. What rc.1 changes is the channel signal: after five alphas, the series considers itself candidate-complete.

rc.2: two items, three hours later

v0.2.1-rc.2 published the same day at 08:16 UTC, about three hours after rc.1, also with the Pre-release flag. Its New Features section holds exactly two items: support for DeepSeek-V4.1-Flash-1017 (by @LegGasai), and support for the DeepSeek Search and Fetch APIs, which can be enabled in Web Search settings (by @yudshj and @LegGasai). The notes describe the APIs no further than that one line, and the release page links a compare range from rc.1 to rc.2.

Both builds keep the Pre-release flag, and as of this article’s 2026-10-18 fetch of the releases list the line still has no stable build. The full bilingual notes are on the two release pages linked above.

rc.1 is an aggregate, not a new feature drop

rc.2: two items, three hours later

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