v4.1.0

What’s changed

✨ New features

• Add low-level parameter access methods @liudger (#1309)
• Add optional parameter filtering @liudger (#1310)

🐛 Bug fixes

• Add optional include parameter for hot water group validation @liudger (#1312)

🚀 Enhancements

• Add low-level parameter access methods @liudger (#1309)
• Add optional parameter filtering @liudger (#1310)
• Add speed comparison tests for BSB-LAN API calls @liudger (#1311)

v4.1.0-beta.2

What’s changed

🐛 Bug fixes

• Add optional include parameter for hot water group validation @liudger (#1312)

v4.1.0-beta.1

What’s changed

🚀 Enhancements

• Add speed comparison tests for BSB-LAN API calls @liudger (#1311)

v4.1.0-beta.0

What’s changed

✨ New features

• Add low-level parameter access methods @liudger (#1309)
• Add optional parameter filtering @liudger (#1310)

🚀 Enhancements

• Add low-level parameter access methods @liudger (#1309)
• Add optional parameter filtering @liudger (#1310)

v4.0.0

What’s changed

🚀 Enhancements

• Feature: Lazy loading @liudger (#1307)

🧰 Maintenance

• Add support for pre-release options in release drafter workflow @liudger (#1308)

📚 Documentation

• move MIT License file to root @liudger (#1302)

⬆️ Dependency updates

• ⬆️ Lock file maintenance @renovate[bot] (#1300)
• ⬆️ Update dependency ty to v0.0.9 @renovate[bot] (#1303)
• ⬆️ Update dependency ty to v0.0.10 @renovate[bot] (#1305)
• ⬆️ Update dependency ruff to v0.14.11 @renovate[bot] (#1304)
• ⬆️ Update github/codeql-action action to v4 @renovate[bot] (#1299)
• ⬆️ Update dependency ty to v0.0.11 @renovate[bot] (#1306)

More details

🚀 Performance Comparison: Lazy Loading

Before (Eager Loading)

• Initialize(): ~24 seconds
• All sections validated upfront (heating, sensor, staticValues, device, hot_water)
• Hot water section alone: ~7.9 seconds (67% of total init time)

After (Lazy Loading)

• Initialize(): ~0.02 seconds (~1200x faster)
• Only fetches firmware version on init
• Sections validated on-demand when first accessed

Granular Hot Water Loading

Hot water parameters split into 3 groups for more efficient loading:

Group	Params	Method	Use Case
Essential	5	hot_water_state()	Frequent polling
Config	16	hot_water_config()	Advanced settings
Schedule	8	hot_water_schedule()	Time programs

Race Condition Prevention

Added asyncio locks (double-checked locking pattern) to prevent duplicate network requests when concurrent calls access the same section before validation completes.

Home Assistant Impact

• ⚡ Integration loads almost instantly
• 📉 Reduced startup blocking time from ~24s to ~0.02s
• 🔄 Data fetched on-demand, spreading network load over time

v4.0.0-beta.0

What’s changed

🚀 Enhancements

• Feature: Lazy loading @liudger (#1307)

🧰 Maintenance

• Add support for pre-release options in release drafter workflow @liudger (#1308)

📚 Documentation

• move MIT License file to root @liudger (#1302)

⬆️ Dependency updates

• ⬆️ Lock file maintenance @renovate[bot] (#1300)
• ⬆️ Update dependency ty to v0.0.9 @renovate[bot] (#1303)
• ⬆️ Update dependency ty to v0.0.10 @renovate[bot] (#1305)
• ⬆️ Update dependency ruff to v0.14.11 @renovate[bot] (#1304)
• ⬆️ Update github/codeql-action action to v4 @renovate[bot] (#1299)
• ⬆️ Update dependency ty to v0.0.11 @renovate[bot] (#1306)

v3.1.6

What’s changed

🚀 Enhancements

• Refactor HVAC action constants @liudger (#1298)

v3.1.5

What’s changed

🚀 Enhancements

• Add HVAC action constants @liudger (#1296)

🧰 Maintenance

• ⬆️ Update package rules to match 'uv' manager for Python dependencies @liudger (#1275)
• ⬆️ Enhance auto-approve workflow conditions for Renovate PRs @liudger (#1279)
• mypy to astral ty @liudger (#1282)
• Update copyright year in LICENSE and README files to 2026 @liudger (#1297)

⬆️ Dependency updates

• ⬆️ Lock file maintenance @renovate[bot] (#1276)
• ⬆️ Update codecov/codecov-action action to v5.5.2 @renovate[bot] (#1277)
• ⬆️ Update github/codeql-action action to v3.31.9 @renovate[bot] (#1285)
• ⬆️ Update dependency ty to v0.0.8 @renovate[bot] (#1284)
• ⬆️ Update hmarr/auto-approve-action digest to f0939ea @renovate[bot] (#1280)
• ⬆️ Update dependency pre-commit to v4.5.1 @renovate[bot] (#1281)
• ⬆️ Update dependency ruff to v0.14.10 @renovate[bot] (#1283)
• ⬆️ Update dependency coverage to v7.13.1 @renovate[bot] (#1287)
• ⬆️ Update astral-sh/setup-uv action to v7 @renovate[bot] (#1290)
• ⬆️ Update actions/upload-artifact action to v6 @renovate[bot] (#1289)
• ⬆️ Update dependency node to v24 @renovate[bot] (#1292)
• ⬆️ Update actions/download-artifact action to v7 @renovate[bot] (#1288)
• ⬆️ Update dependency flake8-simplify to v0.30.0 @renovate[bot] (#1294)
• ⬆️ Update dependency pylint to v4 @renovate[bot] (#1293)
• ⬆️ Update dependency black to v25.12.0 @renovate[bot] (#1286)
• ⬆️ Update dependency isort to v7 @renovate[bot] (#1291)

v3.1.4

What’s changed

🐛 Bug fixes

• Make outside_temperature optional in Sensor model @liudger (#1272)

🚀 Enhancements

• Implement exponential backoff @liudger (#1273)

🧰 Maintenance

• Add GitHub Action for auto-approving Renovate PRs @liudger (#1274)

⬆️ Dependency updates

• ⬆️ Update actions/stale action to v10.1.1 @renovate[bot] (#1267)
• ⬆️ Update actions/upload-artifact action to v5 @renovate[bot] (#1270)
• ⬆️ Update dependency mypy to v1.19.0 @renovate[bot] (#1254)
• ⬆️ Update actions/download-artifact action to v6 @renovate[bot] (#1264)
• ⬆️ Update dependency prettier to v3.7.4 @renovate[bot] (#1251)
• ⬆️ Update actions/checkout action to v6 @renovate[bot] (#1263)
• ⬆️ Update actions/setup-node action to v6 @renovate[bot] (#1269)
• ⬆️ Update sigstore/gh-action-sigstore-python action to v3.2.0 @renovate[bot] (#1268)
• ⬆️ Update dependency ruff to v0.14.8 @renovate[bot] (#1253)
• ⬆️ Update actions/setup-python action to v6.1.0 @renovate[bot] (#1250)

v3.1.3

What’s changed

🚀 Enhancements

• Add DaySchedule and TimeSlot models for hot water scheduling @liudger (#1265)