.browserslistrc

# Browsers that we support
#
# Chrome is set to a lagging value because the CHT is mostly used in a webview. Webviews are
# almost always the Android Webview (Chromium). 
#
# Because many Android phones are not set to autoupdate, we know that lots use old versions of webview.
# We progressively increase the minimum browser version when possible, but it needs careful communication and
# is quite expensive for partners to verify which phones need updating and which don't.
#
# Firefox on the other hand is in the vast majority of cases only used on desktops which are much better at 
# keeping up to date so, we can safely stick to a rolling version there. 
#
# See the CHT dependency matrix at: https://docs.communityhealthtoolkit.org/core/releases/#dependencies

Chrome >= 90
last 4 Firefox versions