# Changelog

This document outlines major changes between releases.

## [Unreleased]

## [0.28.1] - 2024-01-24

### Added
- MD5 hash as ETag and response header (#205)
- Tree pool traversal limit (#262)

### Updating from 0.28.0

See new `features.md5.enabled` and `frostfs.tree_pool_max_attempts` config
parameters.

## [0.28.0] - Academy of Sciences - 2023-12-07

### Fixed
- Handle negative `Content-Length` on put (#125)
- Use `DisableURIPathEscaping` to presign urls (#125)
- Use specific s3 errors instead of `InternalError` where possible (#143)
- `grpc` schemas in tree configuration (#166)
- Return appropriate 404 code when object missed in storage but there is in gate cache (#158)
- Replace part on re-upload when use multipart upload (#176)
- Fix goroutine leak on put object error (#178)
- Fix parsing signed headers in presigned urls (#182)
- Fix url escaping (#188)
- Use correct keys in `list-multipart-uploads` response (#185)
- Fix parsing `key-marker` for object list versions (#237)
- `GetSubTree` failures (#179)
- Unexpected EOF during multipart download (#210)
- Produce clean version in debian build (#245)

### Added
- Add `trace_id` value into log record when tracing is enabled (#142)
- Add basic error types and exit codes to `frostfs-s3-authmate` (#152)
- Add a metric with addresses of nodes of the same and highest priority that are currently healthy (#186)
- Support dump metrics descriptions (#80)
- Add `copies_numbers` section to `placement_policy` in config file and support vectors of copies numbers (#70, #101)
- Support impersonate bearer token (#81, #105)
- Reload default and custom copies numbers on SIGHUP (#104)
- Tracing support (#84, #140)
- Return bearer token in `s3-authmate obtain-secret` result (#132)
- Support multiple version credentials using GSet (#135)
- Implement chunk uploading (#106)
- Add new `kludge.bypass_content_encoding_check_in_chunks` config param (#146)
- Add new `frostfs.client_cut` config param (#192)
- Add selection of the node of the latest version of the object (#231)
- Soft memory limit with `runtime.soft_memory_limit` (#196)
- `server_health` metric for every S3 endpoint status (#199)

### Changed
- Update prometheus to v1.15.0 (#94)
- Update go version to go1.19 (#118)
- Remove object from tree and reset its cache on object deletion when it is already removed from storage (#78)
- Finish rebranding (#2)
- Timeout errors has code 504 now (#103)
- Use request scope logger (#111)
- Add `s3-authmate update-secret` command (#131)
- Use default registerer for app metrics (#155)
- Use chi router instead of archived gorlilla/mux (#149, #174, #188)
- Complete multipart upload doesn't unnecessary copy now. Thus, the total time of multipart upload was reduced by 2 times (#63)
- Use gate key to form object owner (#175)
- Apply placement policies and copies if there is at least one valid value (#168)
- `statistic_tx_bytes_total` and `statistic_rx_bytes_total` metric to `statistic_bytes_total` metric with `direction` label (#153)
- Refactor of context-stored data receivers (#137)
- Refactor fetch/parse config parameters functions (#117)
- Move all log messages to constants (#96)
- Allow zero value of `part-number-marker` (#207)
- Clean tag node in the tree service instead of removal (#233)

### Removed
- Drop `tree.service` param (now endpoints from `peers` section are used) (#133)

## [0.27.0] - Karpinsky - 2023-07-12

This is a first FrostFS S3 Gateway release named after
[Karpinsky glacier](https://en.wikipedia.org/wiki/Karpinsky_Glacier).

### Fixed
- Using multiple servers require only one healthy (#12)
- Renew token before it expires (#20)
- Add generated deb builder files to .gitignore, and fix typo (#28)
- Get empty bucket CORS from frostfs (#36)
- Don't count pool error on client abort (#35)
- Handle request cancelling (#69)
- Clean up List and Name caches when object is missing in Tree service (#57)
- Don't create unnecessary delete-markers (#83)
- `Too many pings` error (#145)

### Added
- Billing metrics (#5, #26, #29)
- Return container name in `head-bucket` response (#18)
- Multiple configs support (#21)
- Bucket name resolving policy (#25)
- Support string `Action` and `Resource` fields in `bucketPolicy.Statement` (#32)
- Add new `kludge.use_default_xmlns_for_complete_multipart` config param (#40)
- Return `X-Owner-Id` in `head-bucket` response (#79)
- Support multiple tree service endpoints (#74, #110, #114)

### Changed
- Repository rebranding (#1)
- Update neo-go to v0.101.0 (#14)
- Update viper to v1.15.0 (#14)
- Update go version to go1.18 (#16)
- Return error on invalid LocationConstraint (#23)
- Limit number of objects to delete at one time (#37)
- CompleteMultipartUpload handler now sends whitespace characters to keep alive client's connection (#60)
- Support new system attributes (#64)
- Abstract network communication in TreeClient (#59, #75)
- Changed values for `frostfs_s3_gw_state_health` metric (#91)

## Older versions

This project is a fork of [NeoFS S3 Gateway](https://github.com/nspcc-dev/neofs-s3-gw) from version v0.26.0.
To see CHANGELOG for older versions, refer to https://github.com/nspcc-dev/neofs-s3-gw/blob/master/CHANGELOG.md.

[0.27.0]: https://git.frostfs.info/TrueCloudLab/frostfs-s3-gw/compare/b2148cc3...v0.27.0
[0.28.0]: https://git.frostfs.info/TrueCloudLab/frostfs-s3-gw/compare/v0.27.0...v0.28.0
[0.28.1]: https://git.frostfs.info/TrueCloudLab/frostfs-s3-gw/compare/v0.28.0...v0.28.1
[Unreleased]: https://git.frostfs.info/TrueCloudLab/frostfs-s3-gw/compare/v0.28.1...master