Bump minor version to 2.6.0, update CHANGELOG.md

3 jobs for release_2_5
latest
Status Job ID Name Coverage
  Test
failed code_quality #508324
allowed to fail

failed gemnasium-dependency_scanning #508322
allowed to fail

failed retire-js-dependency_scanning #508323
allowed to fail

 
Name Stage Failure
failed
code_quality Test There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job log
failed
retire-js-dependency_scanning Test There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job log
failed
gemnasium-dependency_scanning Test There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job log