Changes in synapse v0.31.0-rc1 (2018-06-04) Most notable change is to switch to python prometheus library to improve system stats reporting Features: * Switch to the Python Prometheus library (PR #3256, #3274) * Let users leave the server notice room after joining (PR #3287) Changes: * daily user type phone home stats (PR #3264) * Use iter* methods for _filter_events_for_server (PR #3267) * Docs on consent bits (PR #3268) * Remove users from user directory on deactivate (PR #3277) * Avoid sending consent notice to guest users (PR #3288) * disable CPUMetrics if no /proc/self/stat (PR #3299) * Add local and loopback IPv6 addresses to url_preview_ip_range_blacklist (PR #3312) Thanks to @thegcat! * Consistently use six's iteritems and wrap lazy keys/values in list() if they're not meant to be lazy (PR #3307) * Add private IPv6 addresses to example config for url preview blacklist (PR #3317) Thanks to @thegcat! * Reduce stuck read-receipts: ignore depth when updating (PR #3318) * Put python's logs into Trial when running unit tests (PR #3319) Changes, python 3 migration: * Replace some more comparisons with six (PR #3243) Thanks to @NotAFile! * replace some iteritems with six (PR #3244) Thanks to @NotAFile! * Add batch_iter to utils (PR #3245) Thanks to @NotAFile! * use repr, not str (PR #3246) Thanks to @NotAFile! * Misc Python3 fixes (PR #3247) Thanks to @NotAFile! * Py3 storage/_base.py (PR #3278) Thanks to @NotAFile! * more six iteritems (PR #3279) Thanks to @NotAFile! * More Misc. py3 fixes (PR #3280) Thanks to @NotAFile! * remaining isintance fixes (PR #3281) Thanks to @NotAFile! * py3-ize state.py (PR #3283) Thanks to @NotAFile! * extend tox testing for py3 to avoid regressions (PR #3302) Thanks to @krombel! * use memoryview in py3 (PR #3303) Thanks to @NotAFile! Bugs: * Fix federation backfill bugs (PR #3261) * federation: fix LaterGauge usage (PR #3328) Thanks to @intelfx!