v9.95 2026-07-15 WeKan ® release

This release fixes the following bugs:

• FerretDB: WeKan did not work after migrating to FerretDB — every logged-in browser was logged out again and the database CPU was pinned at 100% (#6457, server/accounts-resume-login.js, server/imports.js). Meteor’s accounts-base “resume” login handler projects one array element with the positional operator ({fields: {'services.resume.loginTokens.$': 1}}), and FerretDB rejects that find with “Executor error during find command :: caused by :: positional operator ’.$’ couldn’t find a matching element in the array” (code 51246). Resume is how an already-logged-in browser re-authenticates on every page load and every DDP reconnect, so the throw logged the user out, the client reconnected, resume threw again, and the retry loop pinned the FerretDB CPU — the board looked broken right after a migration that had just taken hours. WeKan now replaces that login handler with one that projects the whole (small) loginTokens array and picks the matching token in JavaScript — which is what upstream already does in its own $or fallback query, so nothing else about login behaviour changes. Thanks to markusst1982 and xet7.

• Snap: a snap refresh during the MongoDB → FerretDB migration threw away hours of migration progress (snap-src/bin/migration-control, releases/migrate-mongodb-to-ferretdb.mjs, snap-src/bin/migrate-mongo3-to-ferretdb.mjs). A big migration can run for 5 hours, so being interrupted by a snap refresh, snap stop or a reboot is normal — but it was treated as a failure: snapd’s SIGTERM killed the importer, migration-control read its signal exit code (143) as “the migration failed”, and fail_and_run_mongodb deleted the partial FerretDB SQLite and set migrate=off. Every refresh meant starting the whole migration from zero. Now an interruption is distinguished from a failure (a SIGTERM/SIGINT trap, plus an importer exit code >= 128) and keeps the partial database and the checkpoint, leaves auto-migration on, and hands back to MongoDB so WeKan keeps working until the next start resumes. Thanks to markusst1982 and xet7.

• Snap: an interrupted migration re-extracted every attachment, needing double the disk space (releases/migrate-mongodb-to-ferretdb.mjs, snap-src/bin/migrate-mongo3-to-ferretdb.mjs). Only fully-copied collections were checkpointed; the file phase started over, and because the destination path was picked with a “add a _1, _2, … counter while the file exists” loop, every already-extracted attachment was written a second time under a new name, orphaning the first copy — so a resumed migration silently needed twice the disk the up-front space check had budgeted for. Extracted files are now checkpointed individually (recorded only once the bytes are on disk and the record points at them, and re-verified by size on resume, so a half-written file is never mistaken for a finished one) and skipped when resuming, and the destination path is deterministic — an existing file at that path can only be this record’s own partial extraction, so it is overwritten. The MongoDB 3 importer had no checkpoint at all and now resumes collections and files the same way. Thanks to markusst1982 and xet7.

• Snap: discarding a partial FerretDB migration left the resume checkpoint behind, so the retry could switch to a database missing most of its data (snap-src/bin/migration-control). The importer’s checkpoint lists the collections it has already copied and lives in $SNAP_COMMON, not in the SQLite directory that discard_partial_ferretdb wipes — so it survived. The next migration then trusted it, skipped every “already migrated” collection, copied only the rest into the now-empty database, and reported success — leaving the snap serving a FerretDB missing most of its data. The checkpoint is only meaningful together with the SQLite it describes, so the two are now always discarded together. Thanks to markusst1982 and xet7.

• Snap: releases are now published to the Snap Store stable channel automatically (.github/workflows/release-all.yml). Both snap jobs (native and Launchpad) pushed only to candidate, beta and edge, and stable had to be released by hand afterwards. Both now publish to stable,candidate,beta,edge. Thanks to xet7.

Thanks to above GitHub users for their contributions and translators for their translations.