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chore: remove internal version notes, clean up CHANGELOG links

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docs/v1.9_RELEASE_NOTES.md, v1.9.1_HYBRID_FIX.md, v1.9.2_WIFI_RESILIENCE.md
were internal working documents (incomplete checklists, dev notes).
CHANGELOG.md already covers all versions — links removed, status updated to v1.9.3.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Alex Petrochenko
2026-05-14 17:42:59 +01:00
co-authored by Claude Sonnet 4.6
parent 29d7c7f8ad
commit 55bec76d88
4 changed files with 21 additions and 698 deletions
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CHANGELOG.md
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@@ -8,12 +8,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
## [1.9.2] - 2026-01-06
### Fixed
- **CRITICAL**: WiFi credentials no longer cleared on connection failure
- Previous behavior erased SSID/password after failed connection attempts
- Now credentials persist indefinitely through WiFi outages
- OTA update credential loss issue (SDK credentials now tried first, then EEPROM)
### Added
- **WiFi Resilience**: Infinite retry with exponential backoff (5s → 10s → 20s → ... → 5min max)
- **Fallback AP**: "TJ56654-Setup" enabled after ~5 min of failed attempts
- Device continues retry attempts while AP is active (dual STA+AP mode)
@@ -23,11 +25,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
- **SDK credentials support**: Tries WiFiManager-stored credentials first
### Changed
- Clock continues running with last synced time during WiFi outages
- Improved user experience during network failures
- Removed aggressive credential clearing behavior
### Network Activity
- NTP sync: 1 hour interval (pool.ntp.org:123 UDP)
- Weather fetch: 30 min interval (api.open-meteo.com HTTP)
- mDNS: continuous (224.0.0.251 UDP multicast)
@@ -36,22 +40,26 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
## [1.9.1] - 2026-01-03
### Fixed
- **CRITICAL**: WiFi startup sequence - synchronous connection in setup() to ensure proper initialization order
- Display blank screen for 10+ seconds on boot (now shows time after ~15 seconds)
- "DNS resolution failed" errors during startup
- Sunrise/sunset labels cut off on 128px screen (removed labels, arrows are self-explanatory)
### Changed
- Hybrid WiFi model: synchronous in setup(), async reconnect in loop()
- Display formatting: superscript degree symbol and lowercase 'c' for temperature
- Sunrise/sunset screen now shows daylight duration (e.g., "Day 9h 41m") instead of static "Sun Times" text
### Documentation
- Added detailed v1.9.1_HYBRID_FIX.md explaining startup sequence problem and solution
## [1.9.0] - 2026-01-02
### Added
- Fully async architecture (zero blocking operations in loop)
- Custom async NTP implementation (manual UDP packet handling)
- Async HTTP weather fetch (AsyncHTTPRequest library)
@@ -59,12 +67,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
- Independent epoch tracking for accurate time between NTP syncs
### Changed
- Replaced blocking NTPClient with custom async UDP implementation
- Replaced blocking HTTP weather with AsyncHTTPRequest
- Removed all delay() calls from loop()
- WiFi connection now async (later fixed in v1.9.1)
### Performance
- Loop time: 10ms → <1ms (10x improvement)
- Weather fetch: 1-10s blocking → 0ms
- NTP sync: 5-20s blocking → 0ms
@@ -72,6 +82,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
- OTA updates now work during active weather fetching
### Technical
- RAM usage: +536 bytes (36,980 → 37,516)
- Flash usage: +1040 bytes (407,500 → 408,540)
- IRAM: 61,987 bytes (94% - stable)
@@ -79,12 +90,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
## [1.8.0] - 2026-01-01
### Security
- **CRITICAL**: Removed hardcoded WiFi credentials
- Integrated WiFiManager for secure captive portal setup
- Added config validation (magic number check)
- Input sanitization to prevent buffer overflows
### Fixed
- IRAM overflow crisis (94% → 70% via ICACHE_FLASH_ATTR)
- NTP interval bug (config value was ignored, always used hardcoded 1 hour)
- Boolean parsing errors in JSON config import/export
@@ -92,17 +105,20 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
- Memory leaks from String concatenation in web handlers
### Changed
- Web responses now use chunked transfer (eliminated 140+ String concatenations)
- Applied ICACHE_FLASH_ATTR to 26 functions (moved code from IRAM to Flash)
- Improved error handling throughout codebase
### Performance
- Peak heap usage reduced by ~8KB
- EEPROM validation prevents loading corrupted config
## [1.7.0] - 2025-12-31
### Added
- Initial working firmware with correct display support
- NTP time synchronization
- Weather data from Open-Meteo API (free, no API key required)
@@ -114,11 +130,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
- EEPROM configuration persistence
### Hardware Discovery
- Identified display as GM009605v4.3 (not TM1637 or TM1650)
- Discovered swapped I2C pins: SDA=GPIO0, SCL=GPIO2
- Switched to Adafruit_SSD1306 library
### Replaced
- QWeather API → Open-Meteo (no registration required)
- Proprietary firmware → Open source custom firmware
- Insecure WiFi handling → WiFiManager with timeout
@@ -126,11 +144,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
## [1.6.0] - 2025-12-30 (unreleased)
### Attempted
- TM1650 LED driver support (incorrect - device has OLED)
## [1.5.0] - 2025-12-29 (unreleased)
### Attempted
- TM1637 7-segment display support (incorrect - device has OLED)
---
@@ -141,12 +161,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
- **Minor version** (1.X.0): New features, backward-compatible
- **Patch version** (1.9.X): Bug fixes, no new features
## Links
- [Full v1.9 Release Notes](docs/v1.9_RELEASE_NOTES.md)
- [v1.9.1 Hybrid Fix Details](docs/v1.9.1_HYBRID_FIX.md)
- [v1.9.2 WiFi Resilience](docs/v1.9.2_WIFI_RESILIENCE.md)
---
**Status**: v1.9.2 is production-ready and actively used 24/7.
**Status**: v1.9.3 is production-ready and actively used 24/7.