# Changelog
## [0.4.0](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.3.15...hyperstack-server-v0.4.0) (2026-01-31)
### ⚠ BREAKING CHANGES
* Wire protocol simplified - list frames no longer wrap data in {id, order, item}. Data is now sent directly.
### Features
* add append hints to frame protocol for granular array updates ([ce2213f](https://github.com/HyperTekOrg/hyperstack/commit/ce2213fc5a2c242cb4833ab417ff3d71f918812f))
* add gRPC stream reconnection with exponential backoff ([48e3ec7](https://github.com/HyperTekOrg/hyperstack/commit/48e3ec7a952399135a84323da78cdc499804bce9))
* add gzip compression for large WebSocket payloads ([cb694e9](https://github.com/HyperTekOrg/hyperstack/commit/cb694e9ef74ff99345e5f054820207f743d55e1d))
* add view pipeline for derived views like `latest`, `top10` ([f2f72fa](https://github.com/HyperTekOrg/hyperstack/commit/f2f72fa8894d2a38a13e8ee05791b7e4124977ea))
* implement proper unsubscribe support across server and all SDKs ([81118cb](https://github.com/HyperTekOrg/hyperstack/commit/81118cb103720bdf8424cb71aab63d24d26e434c))
* **sdk:** add sorted view support with server-side subscribed frame ([1a7d83f](https://github.com/HyperTekOrg/hyperstack/commit/1a7d83fe4000c26d282f2df9ce95f9d79414014d))
* **server:** add entity cache for snapshot-on-subscribe ([5342720](https://github.com/HyperTekOrg/hyperstack/commit/53427201fb1dbd69f918b07dfc5355c89c2a7694))
* **server:** add slot-based sequence ordering for list views ([892c3d5](https://github.com/HyperTekOrg/hyperstack/commit/892c3d526c71df4c4d848142908ce511e302e082))
* **server:** add SortedViewCache for incremental sorted view maintenance ([6660b90](https://github.com/HyperTekOrg/hyperstack/commit/6660b9072250bcbbdda64db21a547391fa7456f6))
* **server:** add trace context propagation and expanded telemetry ([0dbd8ed](https://github.com/HyperTekOrg/hyperstack/commit/0dbd8ed49780dd2f8f793b6af2425b47d9ccb151))
### Bug Fixes
* Broken streams after naming refactor ([64437b4](https://github.com/HyperTekOrg/hyperstack/commit/64437b4d80c3b2ec68468ce11bbeaab49678aa8b))
* Clippy errors/warnings ([e18fcd6](https://github.com/HyperTekOrg/hyperstack/commit/e18fcd66fb45ee33b0c6019ab65562d286c16eab))
* Feature flag import ([a5c3160](https://github.com/HyperTekOrg/hyperstack/commit/a5c3160cedff5c678c23f266627d2fa7bebc890c))
* increase cache limits 5x to reduce eviction pressure ([49ed3c4](https://github.com/HyperTekOrg/hyperstack/commit/49ed3c4148fbbdc8ad61817ebf31d5989552b181))
* Missing import ([dc9a92d](https://github.com/HyperTekOrg/hyperstack/commit/dc9a92d7f685692746d8c6349da440b2e21028aa))
* Otel feature flag on timing ([42626fb](https://github.com/HyperTekOrg/hyperstack/commit/42626fbc9db0e48f5ab966741c5e71bc34718059))
* prefix unused stats variables to satisfy clippy ([70741c6](https://github.com/HyperTekOrg/hyperstack/commit/70741c680297a84a8136be5104f1dc42d03e2d99))
* preserve VM state across reconnections and add memory management ([7fba770](https://github.com/HyperTekOrg/hyperstack/commit/7fba770df913dd0fbd06e43b402c6c288b25acbb))
* prevent duplicate WebSocket subscriptions from same client ([8135fdf](https://github.com/HyperTekOrg/hyperstack/commit/8135fdf28461b1906a03fe78c3f9ae50362ccb96))
* prevent entity field loss from partial patches in sorted cache ([1e3c8e6](https://github.com/HyperTekOrg/hyperstack/commit/1e3c8e6f25b2b7968e60754e8175c7a66f68c908))
* reduce memory allocations in VM and projector ([d265a4f](https://github.com/HyperTekOrg/hyperstack/commit/d265a4fc358799f33d549412932cce9919b5dc56))
* remove deprecated kv mode from SDKs and documentation ([2097af0](https://github.com/HyperTekOrg/hyperstack/commit/2097af05165eed4a7d9b6ef4ede1b5722ab90215))
* send compressed frames as raw binary gzip instead of base64-wrapped JSON ([2433daf](https://github.com/HyperTekOrg/hyperstack/commit/2433dafdd321151cf5185aaad639871c57777cf4))
* send delete/upsert for derived single view updates ([0577afd](https://github.com/HyperTekOrg/hyperstack/commit/0577afde6640a04be2d8429ba89f149f7a583ae5))
* send snapshots in batches for faster initial page loads ([d4a8c40](https://github.com/HyperTekOrg/hyperstack/commit/d4a8c405bbd5859f40825d99a3b044c64ede6985))
* **server:** isolate HTTP health server on dedicated OS thread ([4695ec9](https://github.com/HyperTekOrg/hyperstack/commit/4695ec90bae65094f77a421b409f02fdd14be702))
* **server:** preserve sort order when entity updates lack the sort field ([7978edc](https://github.com/HyperTekOrg/hyperstack/commit/7978edc2f25eb2d4aa538e351beca2cc2542ee96))
* **server:** resolve WebSocket connection hang from lock contention ([0596c47](https://github.com/HyperTekOrg/hyperstack/commit/0596c47b932075ab3c513b8cf11da3d1b0190778))
* **server:** stream live updates for all items in windowed subscriptions ([ddd4aae](https://github.com/HyperTekOrg/hyperstack/commit/ddd4aaea3f304ae04207f8539e747aa66f331c0a))
* Variable incorrectly named ([826fb82](https://github.com/HyperTekOrg/hyperstack/commit/826fb825f12dd17f96be439aa99d59d3a60bb96c))
### Code Refactoring
* remove Mode::Kv and simplify websocket frame structure ([f1a2b81](https://github.com/HyperTekOrg/hyperstack/commit/f1a2b81f24eeda9a81b5fc0738ef78a5741b687b))
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.3.15 to 0.4.0
## [0.3.15](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.3.14...hyperstack-server-v0.3.15) (2026-01-31)
### Bug Fixes
* prevent entity field loss from partial patches in sorted cache ([1e3c8e6](https://github.com/HyperTekOrg/hyperstack/commit/1e3c8e6f25b2b7968e60754e8175c7a66f68c908))
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.3.14 to 0.3.15
## [0.3.14](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.3.13...hyperstack-server-v0.3.14) (2026-01-28)
### Miscellaneous Chores
* **hyperstack-server:** Synchronize hyperstack versions
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.3.13 to 0.3.14
## [0.3.13](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.3.12...hyperstack-server-v0.3.13) (2026-01-28)
### Miscellaneous Chores
* **hyperstack-server:** Synchronize hyperstack versions
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.3.12 to 0.3.13
## [0.3.12](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.3.11...hyperstack-server-v0.3.12) (2026-01-28)
### Miscellaneous Chores
* **hyperstack-server:** Synchronize hyperstack versions
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.3.11 to 0.3.12
## [0.3.11](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.3.10...hyperstack-server-v0.3.11) (2026-01-28)
### Miscellaneous Chores
* **hyperstack-server:** Synchronize hyperstack versions
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.3.10 to 0.3.11
## [0.3.10](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.3.9...hyperstack-server-v0.3.10) (2026-01-28)
### Miscellaneous Chores
* **hyperstack-server:** Synchronize hyperstack versions
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.3.9 to 0.3.10
## [0.3.9](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.3.8...hyperstack-server-v0.3.9) (2026-01-28)
### Miscellaneous Chores
* **hyperstack-server:** Synchronize hyperstack versions
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.3.8 to 0.3.9
## [0.3.8](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.3.7...hyperstack-server-v0.3.8) (2026-01-28)
### Miscellaneous Chores
* **hyperstack-server:** Synchronize hyperstack versions
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.3.7 to 0.3.8
## [0.3.7](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.3.6...hyperstack-server-v0.3.7) (2026-01-26)
### Bug Fixes
* **server:** isolate HTTP health server on dedicated OS thread ([4695ec9](https://github.com/HyperTekOrg/hyperstack/commit/4695ec90bae65094f77a421b409f02fdd14be702))
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.3.6 to 0.3.7
## [0.3.6](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.3.5...hyperstack-server-v0.3.6) (2026-01-26)
### Bug Fixes
* **server:** preserve sort order when entity updates lack the sort field ([7978edc](https://github.com/HyperTekOrg/hyperstack/commit/7978edc2f25eb2d4aa538e351beca2cc2542ee96))
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.3.5 to 0.3.6
## [0.3.5](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.3.4...hyperstack-server-v0.3.5) (2026-01-24)
### Miscellaneous Chores
* **hyperstack-server:** Synchronize hyperstack versions
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.3.4 to 0.3.5
## [0.3.4](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.3.3...hyperstack-server-v0.3.4) (2026-01-24)
### Miscellaneous Chores
* **hyperstack-server:** Synchronize hyperstack versions
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.3.3 to 0.3.4
## [0.3.3](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.3.2...hyperstack-server-v0.3.3) (2026-01-23)
### Features
* add view pipeline for derived views like `latest`, `top10` ([f2f72fa](https://github.com/HyperTekOrg/hyperstack/commit/f2f72fa8894d2a38a13e8ee05791b7e4124977ea))
* **sdk:** add sorted view support with server-side subscribed frame ([1a7d83f](https://github.com/HyperTekOrg/hyperstack/commit/1a7d83fe4000c26d282f2df9ce95f9d79414014d))
* **server:** add slot-based sequence ordering for list views ([892c3d5](https://github.com/HyperTekOrg/hyperstack/commit/892c3d526c71df4c4d848142908ce511e302e082))
* **server:** add SortedViewCache for incremental sorted view maintenance ([6660b90](https://github.com/HyperTekOrg/hyperstack/commit/6660b9072250bcbbdda64db21a547391fa7456f6))
### Bug Fixes
* send delete/upsert for derived single view updates ([0577afd](https://github.com/HyperTekOrg/hyperstack/commit/0577afde6640a04be2d8429ba89f149f7a583ae5))
* **server:** stream live updates for all items in windowed subscriptions ([ddd4aae](https://github.com/HyperTekOrg/hyperstack/commit/ddd4aaea3f304ae04207f8539e747aa66f331c0a))
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.3.2 to 0.3.3
## [0.3.2](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.3.1...hyperstack-server-v0.3.2) (2026-01-20)
### Bug Fixes
* prevent duplicate WebSocket subscriptions from same client ([8135fdf](https://github.com/HyperTekOrg/hyperstack/commit/8135fdf28461b1906a03fe78c3f9ae50362ccb96))
* send compressed frames as raw binary gzip instead of base64-wrapped JSON ([2433daf](https://github.com/HyperTekOrg/hyperstack/commit/2433dafdd321151cf5185aaad639871c57777cf4))
* send snapshots in batches for faster initial page loads ([d4a8c40](https://github.com/HyperTekOrg/hyperstack/commit/d4a8c405bbd5859f40825d99a3b044c64ede6985))
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.3.1 to 0.3.2
## [0.3.1](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.3.0...hyperstack-server-v0.3.1) (2026-01-20)
### Miscellaneous Chores
* **hyperstack-server:** Synchronize hyperstack versions
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.3.0 to 0.3.1
## [0.3.0](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.2.5...hyperstack-server-v0.3.0) (2026-01-20)
### Features
* add gzip compression for large WebSocket payloads ([cb694e9](https://github.com/HyperTekOrg/hyperstack/commit/cb694e9ef74ff99345e5f054820207f743d55e1d))
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.2.5 to 0.3.0
## [0.2.5](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.2.4...hyperstack-server-v0.2.5) (2026-01-19)
### Miscellaneous Chores
* **hyperstack-server:** Synchronize hyperstack versions
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.2.4 to 0.2.5
## [0.2.4](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.2.3...hyperstack-server-v0.2.4) (2026-01-19)
### Miscellaneous Chores
* **hyperstack-server:** Synchronize hyperstack versions
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.2.3 to 0.2.4
## [0.2.3](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.2.2...hyperstack-server-v0.2.3) (2026-01-18)
### Features
* add append hints to frame protocol for granular array updates ([ce2213f](https://github.com/HyperTekOrg/hyperstack/commit/ce2213fc5a2c242cb4833ab417ff3d71f918812f))
* implement proper unsubscribe support across server and all SDKs ([81118cb](https://github.com/HyperTekOrg/hyperstack/commit/81118cb103720bdf8424cb71aab63d24d26e434c))
* **server:** add trace context propagation and expanded telemetry ([0dbd8ed](https://github.com/HyperTekOrg/hyperstack/commit/0dbd8ed49780dd2f8f793b6af2425b47d9ccb151))
### Bug Fixes
* increase cache limits 5x to reduce eviction pressure ([49ed3c4](https://github.com/HyperTekOrg/hyperstack/commit/49ed3c4148fbbdc8ad61817ebf31d5989552b181))
* prefix unused stats variables to satisfy clippy ([70741c6](https://github.com/HyperTekOrg/hyperstack/commit/70741c680297a84a8136be5104f1dc42d03e2d99))
* preserve VM state across reconnections and add memory management ([7fba770](https://github.com/HyperTekOrg/hyperstack/commit/7fba770df913dd0fbd06e43b402c6c288b25acbb))
* reduce memory allocations in VM and projector ([d265a4f](https://github.com/HyperTekOrg/hyperstack/commit/d265a4fc358799f33d549412932cce9919b5dc56))
* **server:** resolve WebSocket connection hang from lock contention ([0596c47](https://github.com/HyperTekOrg/hyperstack/commit/0596c47b932075ab3c513b8cf11da3d1b0190778))
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.2.2 to 0.2.3
## [0.2.2](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.2.1...hyperstack-server-v0.2.2) (2026-01-16)
### Miscellaneous Chores
* **hyperstack-server:** Synchronize hyperstack versions
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.2.1 to 0.2.2
## [0.2.1](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.2.0...hyperstack-server-v0.2.1) (2026-01-16)
### Features
* add gRPC stream reconnection with exponential backoff ([48e3ec7](https://github.com/HyperTekOrg/hyperstack/commit/48e3ec7a952399135a84323da78cdc499804bce9))
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.2.0 to 0.2.1
## [0.2.0](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.1.11...hyperstack-server-v0.2.0) (2026-01-15)
### ⚠ BREAKING CHANGES
* Wire protocol simplified - list frames no longer wrap data in {id, order, item}. Data is now sent directly.
### Features
* **server:** add entity cache for snapshot-on-subscribe ([5342720](https://github.com/HyperTekOrg/hyperstack/commit/53427201fb1dbd69f918b07dfc5355c89c2a7694))
### Bug Fixes
* remove deprecated kv mode from SDKs and documentation ([2097af0](https://github.com/HyperTekOrg/hyperstack/commit/2097af05165eed4a7d9b6ef4ede1b5722ab90215))
### Code Refactoring
* remove Mode::Kv and simplify websocket frame structure ([f1a2b81](https://github.com/HyperTekOrg/hyperstack/commit/f1a2b81f24eeda9a81b5fc0738ef78a5741b687b))
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.1.11 to 0.2.0
## [0.1.11](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.1.10...hyperstack-server-v0.1.11) (2026-01-14)
### Miscellaneous Chores
* **hyperstack-server:** Synchronize hyperstack versions
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.1.10 to 0.1.11
## [0.1.10](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.1.9...hyperstack-server-v0.1.10) (2026-01-13)
### Miscellaneous Chores
* **hyperstack-server:** Synchronize hyperstack versions
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.1.9 to 0.1.10
## [0.1.9](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.1.8...hyperstack-server-v0.1.9) (2026-01-13)
### Bug Fixes
* Otel feature flag on timing ([42626fb](https://github.com/HyperTekOrg/hyperstack/commit/42626fbc9db0e48f5ab966741c5e71bc34718059))
* Variable incorrectly named ([826fb82](https://github.com/HyperTekOrg/hyperstack/commit/826fb825f12dd17f96be439aa99d59d3a60bb96c))
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.1.8 to 0.1.9
## [0.1.8](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.1.7...hyperstack-server-v0.1.8) (2026-01-13)
### Bug Fixes
* Broken streams after naming refactor ([64437b4](https://github.com/HyperTekOrg/hyperstack/commit/64437b4d80c3b2ec68468ce11bbeaab49678aa8b))
* Clippy errors/warnings ([e18fcd6](https://github.com/HyperTekOrg/hyperstack/commit/e18fcd66fb45ee33b0c6019ab65562d286c16eab))
* Feature flag import ([a5c3160](https://github.com/HyperTekOrg/hyperstack/commit/a5c3160cedff5c678c23f266627d2fa7bebc890c))
* Missing import ([dc9a92d](https://github.com/HyperTekOrg/hyperstack/commit/dc9a92d7f685692746d8c6349da440b2e21028aa))
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.1.6 to 0.1.8
## [0.1.7](https://github.com/HyperTekOrg/hyperstack/compare/v0.1.6...v0.1.7) (2026-01-13)
### Bug Fixes
* Feature flag import ([a5c3160](https://github.com/HyperTekOrg/hyperstack/commit/a5c3160cedff5c678c23f266627d2fa7bebc890c))
* Missing import ([dc9a92d](https://github.com/HyperTekOrg/hyperstack/commit/dc9a92d7f685692746d8c6349da440b2e21028aa))
## [0.1.6](https://github.com/HyperTekOrg/hyperstack/compare/v0.1.5...v0.1.6) (2026-01-13)
### Bug Fixes
* Broken streams after naming refactor ([64437b4](https://github.com/HyperTekOrg/hyperstack/commit/64437b4d80c3b2ec68468ce11bbeaab49678aa8b))
* Clippy errors/warnings ([e18fcd6](https://github.com/HyperTekOrg/hyperstack/commit/e18fcd66fb45ee33b0c6019ab65562d286c16eab))
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.1.5 to 0.1.6
## [0.1.5](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.1.4...hyperstack-server-v0.1.5) (2026-01-09)
### Bug Fixes
* Broken streams after naming refactor ([64437b4](https://github.com/HyperTekOrg/hyperstack/commit/64437b4d80c3b2ec68468ce11bbeaab49678aa8b))
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.1.4 to 0.1.5
## [0.1.4](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.1.2...hyperstack-server-v0.1.4) (2026-01-09)
### Miscellaneous Chores
* **hyperstack-server:** Synchronize hyperstack versions
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.1.2 to 0.1.4
## [0.1.2](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.1.1...hyperstack-server-v0.1.2) (2026-01-09)
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.1.1 to 0.1.2
## [0.1.1](https://github.com/HyperTekOrg/hyperstack/compare/hyperstack-server-v0.1.0...hyperstack-server-v0.1.1) (2026-01-09)
### Bug Fixes
* Clippy errors/warnings ([e18fcd6](https://github.com/HyperTekOrg/hyperstack/commit/e18fcd66fb45ee33b0c6019ab65562d286c16eab))
### Dependencies
* The following workspace dependencies were updated
* dependencies
* hyperstack-interpreter bumped from 0.1.0 to 0.1.1