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+# CHANGELOG of v2.7
+
+Previous change logs can be found at [CHANGELOG-2.6](https://docs.opencurve.io/Release/release-notes-v2.6)
+
+## Features
+
+* [curvefs/client: add quota for S3 client](https://github.com/opencurve/curve/pull/2836), thanks to [@h0hmj][h0hmj].
+* [curvefs/client: now we support hadoop sdk](https://github.com/opencurve/curve/pull/2807), thanks to [@Wine93][Wine93].
+* [curvefs/client: make user agent configurable](https://github.com/opencurve/curve/pull/2501), thanks to [@Ziy1-Tan][Ziy1-Tan].
+* [curvefs/mds: add ability to change capacity in fsinfo](https://github.com/opencurve/curve/pull/2821), thanks to [@h0hmj][h0hmj].
+* [curvefs/metaserver: support asynchronous snapshot](https://github.com/opencurve/curve/pull/2691), thanks to [@NaturalSelect][NaturalSelect].
+* [curvefs/{client,metaserver}: support braft lease read](https://github.com/opencurve/curve/pull/2599), thanks to [@Xinlong-Chen][Xinlong-Chen].
+* [curvefs/*: support space deallocate for curvebs volume as backend](https://github.com/opencurve/curve/pull/2313), thanks to [@ilixiaocui][ilixiaocui].
+* [curvefs/monitor: add memcache](https://github.com/opencurve/curve/pull/2834), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [curvefs/monitor: add cluster usage](https://github.com/opencurve/curve/pull/2842), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [curvefs/monitor: support plugin](https://github.com/opencurve/curve/pull/2830), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [curvefs/docker: support run curvefs on Openeuler 22.03-lts-sp2 platform](https://github.com/opencurve/curve/pull/2789), thanks to [@peter5232][peter5232].
+* [curvebs/chunkserver: support format chunkfile pool in asynchronous](https://github.com/opencurve/curve/pull/2775), thanks to [@Vigor-jpg][Vigor-jpg].
+* [curvebs/{client,chunkserver}: support braft lease read](https://github.com/opencurve/curve/pull/2543), thanks to [@Xinlong-Chen][Xinlong-Chen].
+* [curvebs/*: support poolset](https://github.com/opencurve/curve/pull/1988), thanks to [@jolly-sy][jolly-sy].
+* [curvebs/*: support 512 aligned IO](https://github.com/opencurve/curve/pull/2538), thanks to [@wu-hanqing][wu-hanqing].
+* [curvebs/tool: support list or query scan status](https://github.com/opencurve/curve/pull/2481), thanks to [@lianzhanbiao][lianzhanbiao].
+* [curvebs/tool: support get copyset status](https://github.com/opencurve/curve/pull/2520), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [curvebs/tool: support list may-broken-vol](https://github.com/opencurve/curve/pull/2518), thanks to [@baytan0720][baytan0720].
+* [curvebs/tool: support update leader-schedule[-all]](https://github.com/opencurve/curve/pull/2551), thanks to [@montaguelhz][montaguelhz].
+* [curvebs/tool: support get cluster status](https://github.com/opencurve/curve/pull/2530), thanks to [@caoxianfei1][caoxianfei1].
+* [curvebs/tool: support update volume flatten](https://github.com/opencurve/curve/pull/2757), thanks to [@baytan0720][baytan0720].
+* [curvebs/tool: support check chunkserver](https://github.com/opencurve/curve/pull/2632), thanks to [@lng2020][lng2020].
+* [curvebs/tool: support create snapshot for all copyset](https://github.com/opencurve/curve/pull/2618), thanks to [@montaguelhz][montaguelhz].
+* [curvebs/tool: add snapshot utils](https://github.com/opencurve/curve/pull/2758), thanks to [@baytan0720][baytan0720].
+
+## Improve
+
+* [curvefs/client: optimizing the read amplification problem, especially for memcache](https://github.com/opencurve/curve/pull/2792), thanks to [@wuhongsong][wuhongsong].
+* [curvefs/client: split latency metric into data and attr](https://github.com/opencurve/curve/pull/2824), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [curvefs/client: add kvcache metric](https://github.com/opencurve/curve/pull/2806), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [curvefs/client: add discache metric](https://github.com/opencurve/curve/pull/2798), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [curvefs/client: support list or stop warmup progress](https://github.com/opencurve/curve/pull/2652), thanks to [@ken90242][ken90242].
+* [curvefs/client: support warmup symbol link](https://github.com/opencurve/curve/pull/2723), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [curvefs/client: merge two rpc into one rpc for makenode](https://github.com/opencurve/curve/pull/2680), thanks to [@201341][201341].
+* [curvefs/client: delete apply index](https://github.com/opencurve/curve/pull/2631), thanks to [@Xinlong-Chen][Xinlong-Chen].
+* [curvefs/client: make enableSumInDir to false in default](https://github.com/opencurve/curve/pull/2767), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [curvefs/client: add s3,diskcache,kvcache io metric](https://github.com/opencurve/curve/pull/2735), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [curvefs/mds: support modify some configs on fly](https://github.com/opencurve/curve/pull/2813), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [curvefs/mds: change hostname to optional for register server](https://github.com/opencurve/curve/pull/2574), thanks to [@201341][201341].
+* [curvefs/mds: split large test cases into focused smaller ones](https://github.com/opencurve/curve/pull/2717), thanks to [@ken90242][ken90242].
+* [curvefs/metaserver: remove some unnecessary error logs](https://github.com/opencurve/curve/pull/2831), thanks to [@SeanHai][SeanHai].
+* [curvefs/metaserver: add delete inode metric](https://github.com/opencurve/curve/pull/2822), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [curvefs/metaserver: separate raft read and write apply queue](https://github.com/opencurve/curve/pull/2498), thanks to [@Xinlong-Chen][Xinlong-Chen].
+* [curvefs/{mds,metaserver}: add idle_timeout_sec option](https://github.com/opencurve/curve/pull/2479), thanks to [@201341][201341].
+* [curvefs/tool: enable go modules](https://github.com/opencurve/curve/pull/2804), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [curvefs/tool: support update copyset avail flag](https://github.com/opencurve/curve/pull/2455), thanks to [@baytan0720][baytan0720].
+* [curvebs/client: add slow request metric](https://github.com/opencurve/curve/pull/2746), thanks to [@wu-hanqing][wu-hanqing].
+* [curvebs/client: delete apply index](https://github.com/opencurve/curve/pull/2630), thanks to [@Xinlong-Chen][Xinlong-Chen].
+* [curvebs/chunkserver: add some common functions](https://github.com/opencurve/curve/pull/2826), thanks to [@Xinlong-Chen][Xinlong-Chen].
+* [curvebs/chunkserver: enable odsync by default](https://github.com/opencurve/curve/pull/2614), thanks to [@wu-hanqing][wu-hanqing].
+* [curvebs/chunkserver: unify apply queue](https://github.com/opencurve/curve/pull/2641), thanks to [@Xinlong-Chen][Xinlong-Chen].
+* [curvebs/tool: refactor for remove duplicate codes](https://github.com/opencurve/curve/pull/2534), thanks to [@baytan0720][baytan0720].
+* [curvebs/docker: upgrade base image to debian11](https://github.com/opencurve/curve/pull/2629), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [build: install clang-format-14 in dev docker](https://github.com/opencurve/curve/pull/2828), thanks to [@wu-hanqing][wu-hanqing].
+* [build: add braft format patch](https://github.com/opencurve/curve/pull/2661), thanks to [@wu-hanqing][wu-hanqing].
+* [build: support build specified library](https://github.com/opencurve/curve/pull/2829), thanks to [@quas-modo][quas-modo].
+* [build: replace spdlog repo mirror address](https://github.com/opencurve/curve/pull/2786), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [build: replace fmt repo mirror address](https://github.com/opencurve/curve/pull/2796), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [build: deprecate mk-deb.sh mk-tar.sh and use make targets instead](https://github.com/opencurve/curve/pull/2644), thanks to [@charlie0129][charlie0129].
+* [build: speed up bazel build](https://github.com/opencurve/curve/pull/2679), thanks to [@h0hmj][h0hmj].
+* [build: support build on GCC 11+](https://github.com/opencurve/curve/pull/2642), thanks to [@NaturalSelect][NaturalSelect].
+* [tool: support shell completion](https://github.com/opencurve/curve/pull/2662), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [tool: support upgrade curve tool online](https://github.com/opencurve/curve/pull/2674), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [tool: refactor all *map to map](https://github.com/opencurve/curve/pull/2541), thanks to [@XR-stb][XR-stb].
+* [test: upgrade googletest to v1.12.1](https://github.com/opencurve/curve/pull/2558), thanks to [@wu-hanqing][wu-hanqing].
+* [ci: add clang-format action](https://github.com/opencurve/curve/pull/2739), thanks to [@peter5232][peter5232].
+* [ci: add cppcheck action, sanitizers](https://github.com/opencurve/curve/pull/2784), thanks to [@czm23333][czm23333].
+
+## Bugfix
+* [curvefs/client: fixed diskcache lru bug](https://github.com/opencurve/curve/pull/2815), thanks to [@wuhongsong][wuhongsong].
+* [curvefs/client: fixed some minor bugs.](https://github.com/opencurve/curve/pull/2522), thanks to [@Wine93][Wine93].
+* [curvefs/client: fixed check filetype with wrong method](https://github.com/opencurve/curve/pull/2729), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [curvefs/client: fixed ut fail](https://github.com/opencurve/curve/pull/2743), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [curvefs/client: fixed wrong metric name](https://github.com/opencurve/curve/pull/2694), thanks to [@SeanHai][SeanHai].
+* [curvefs/client: fixed warmup issue which will leads data inconsitent](https://github.com/opencurve/curve/pull/2562), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [curvefs/mds: fixed partition range cross](https://github.com/opencurve/curve/pull/2727), thanks to [@SeanHai][SeanHai].
+* [curvefs/tool: fixed list copyset information error](https://github.com/opencurve/curve/pull/2523), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [curvebs/tool: get copyset status from braft metric on chunkserver](https://github.com/opencurve/curve/pull/2731), thanks to [@caoxianfei1][caoxianfei1].
+* [build: fixed buildfs.sh run failed on debian11](https://github.com/opencurve/curve/pull/2511), thanks to [@201341][201341].
+* [test: fixed filepool test invalid memory access](https://github.com/opencurve/curve/pull/2575), thanks to [@wu-hanqing][wu-hanqing].
+* [ci: let ci works better](https://github.com/opencurve/curve/pull/2812), thanks to [@wu-hanqing][wu-hanqing].
+
+## Doc
+* [doc: updated maintainers for curve project](https://github.com/opencurve/curve/pull/2695), thanks to [@aspirer][aspirer].
+* [doc: fix typo](https://github.com/opencurve/curve/pull/2799), thanks to [@NopeDl][NopeDl].
+* [doc: updated tool's readme](https://github.com/opencurve/curve/pull/2506), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [doc: replace harbor with opencurve](https://github.com/opencurve/curve/pull/2549), thanks to [@Cyber-SiKu][Cyber-SiKu].
+* [doc: fixed some wrong usage exmaple for tool](https://github.com/opencurve/curve/pull/2675), thanks to [@montaguelhz][montaguelhz].
+
+[Cyber-SiKu]: https://github.com/Cyber-SiKu
+[h0hmj]: https://github.com/h0hmj
+[wu-hanqing]: https://github.com/wu-hanqing
+[Wine93]: https://github.com/Wine93
+[Vigor-jpg]: https://github.com/Vigor-jpg
+[SeanHai]: https://github.com/SeanHai
+[quas-modo]: https://github.com/quas-modo
+[wuhongsong]: https://github.com/wuhongsong
+[peter5232]: https://github.com/peter5232
+[aspirer]: https://github.com/aspirer
+[Xinlong-Chen]: https://github.com/Xinlong-Chen
+[NopeDl]: https://github.com/NopeDl
+[charlie0129]: https://github.com/charlie0129
+[201341]: https://github.com/201341
+[baytan0720]: https://github.com/baytan0720
+[caoxianfei1]: https://github.com/caoxianfei1
+[czm23333]: https://github.com/czm23333
+[dependabot]: https://github.com/dependabot
+[ilixiaocui]: https://github.com/ilixiaocui
+[jolly-sy]: https://github.com/jolly-sy
+[ken90242]: https://github.com/ken90242
+[lianzhanbiao]: https://github.com/lianzhanbiao
+[lng2020]: https://github.com/lng2020
+[montaguelhz]: https://github.com/montaguelhz
+[NaturalSelect]: https://github.com/NaturalSelect
+[setcy]: https://github.com/setcy
+[XR-stb]: https://github.com/XR-stb
+[Ziy1-Tan]: https://github.com/Ziy1-Tan
+
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