{"id": "changelog:id51", "page": "changelog", "ref": "id51", "title": "0.49 (2020-09-14)", "content": "See also  Datasette 0.49: The annotated release notes . \n             \n                 \n                     Writable canned queries now expose a JSON API, see  JSON API for writable canned queries . ( #880 ) \n                 \n                 \n                     New mechanism for defining page templates with custom path parameters - a template file called  pages/about/{slug}.html  will be used to render any requests to  /about/something . See  Path parameters for pages . ( #944 ) \n                 \n                 \n                     register_output_renderer()  render functions can now return a  Response . ( #953 ) \n                 \n                 \n                     New  --upgrade  option for  datasette install . ( #945 ) \n                 \n                 \n                     New  datasette --pdb  option. ( #962 ) \n                 \n                 \n                     datasette --get  exit code now reflects the internal HTTP status code. ( #947 ) \n                 \n                 \n                     New  raise_404()  template function for returning 404 errors. ( #964 ) \n                 \n                 \n                     datasette publish heroku  now deploys using Python 3.8.5 \n                 \n                 \n                     Upgraded  CodeMirror  to 5.57.0. ( #948 ) \n                 \n                 \n                     Upgraded code style to Black 20.8b1. ( #958 ) \n                 \n                 \n                     Fixed bug where selected facets were not correctly persisted in hidden form fields on the table page. ( #963 ) \n                 \n                 \n                     Renamed the default error template from  500.html  to  error.html . \n                 \n                 \n                     Custom error pages are now documented, see  Custom error pages . ( #965 )", "breadcrumbs": "[\"Changelog\"]", "references": "[{\"href\": \"https://simonwillison.net/2020/Sep/15/datasette-0-49/\", \"label\": \"Datasette 0.49: The annotated release notes\"}, {\"href\": \"https://github.com/simonw/datasette/issues/880\", \"label\": \"#880\"}, {\"href\": \"https://github.com/simonw/datasette/issues/944\", \"label\": \"#944\"}, {\"href\": \"https://github.com/simonw/datasette/issues/953\", \"label\": \"#953\"}, {\"href\": \"https://github.com/simonw/datasette/issues/945\", \"label\": \"#945\"}, {\"href\": \"https://github.com/simonw/datasette/issues/962\", \"label\": \"#962\"}, {\"href\": \"https://github.com/simonw/datasette/issues/947\", \"label\": \"#947\"}, {\"href\": \"https://github.com/simonw/datasette/issues/964\", \"label\": \"#964\"}, {\"href\": \"https://codemirror.net/\", \"label\": \"CodeMirror\"}, {\"href\": \"https://github.com/simonw/datasette/issues/948\", \"label\": \"#948\"}, {\"href\": \"https://github.com/simonw/datasette/issues/958\", \"label\": \"#958\"}, {\"href\": \"https://github.com/simonw/datasette/issues/963\", \"label\": \"#963\"}, {\"href\": \"https://github.com/simonw/datasette/issues/965\", \"label\": \"#965\"}]"}