Release 2026.3.4

[josephbirkner]

Release branch for 2026.3.4.
Includes:

• Restore legacy /tiles/next payload endpoint alias.
• Preserve attribute layer instance IDs in GeoJSON import/export.

[sonarqubecloud]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

Package	Line Rate	Branch Rate	Health
libs.geojsonsource.include.geojsonsource	100%	50%	✔
libs.geojsonsource.src	66%	38%	➖
libs.gridsource.include.gridsource	0%	0%	❌
libs.gridsource.src	0%	0%	❌
libs.http-datasource.src	48%	26%	❌
libs.http-service.src	58%	24%	➖
libs.location.include.mapget.location	100%	100%	✔
libs.location.src	83%	40%	✔
libs.logging.include.mapget	5%	2%	❌
libs.model.include.mapget.model	52%	30%	➖
libs.model.src	73%	42%	➖
libs.service.include.mapget.service	56%	50%	➖
libs.service.src	74%	38%	➖
Summary	65% (12148 / 18558)	35% (12927 / 37286)	➖

Minimum allowed line rate is 50%