Depend on base >= 4.11 and remove CI tests for ghc <= 8.2. #49

	name: CI tests

	on: [push, pull_request]

	jobs:
	linux:

	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	versions:
	- ghc: '8.4'
	cabal: '2.4'
	- ghc: '8.6'
	cabal: '2.4'
	- ghc: '8.8'
	cabal: '3.0'
	- ghc: '8.10'
	cabal: '3.2'
	- ghc: '9.0'
	cabal: '3.4'
	- ghc: '9.2'
	cabal: '3.4'
	- ghc: '9.4'
	cabal: '3.4'
	- ghc: '9.6'
	cabal: 'latest'
	- ghc: '9.8'
	cabal: 'latest'
	- ghc: '9.10'
	cabal: 'latest'
	steps:
	- uses: actions/checkout@v1
	- name: Install cabal/ghc
	run: \|
	ghcup install ghc --set ${{ matrix.versions.ghc }}
	ghcup install cabal --set ${{ matrix.versions.cabal }}
	- name: Install dependencies
	run: \|
	cabal v2-update
	cabal v2-build --dependencies-only --enable-tests --enable-benchmarks --disable-optimization -fexecutable all
	- name: Build and test
	run: \|
	cabal v2-build --enable-tests --enable-benchmarks --disable-optimization -fexecutable all
	cabal v2-test --disable-optimization all

	macos:

	runs-on: macOS-latest

	steps:
	- uses: actions/checkout@v1
	- name: Install stack
	run: \|
	curl -L https://get.haskellstack.org/stable/osx-x86_64.tar.gz -o stack.tar.gz
	tar xzvf stack.tar.gz --strip-components=1 'stack*/stack'
	- name: Install dependencies
	run: \|
	./stack update
	./stack test --dependencies-only --fast
	- name: Build and test
	run: \|
	./stack install --fast --test --haddock --no-haddock-deps

	windows:

	runs-on: windows-2019

	steps:
	- uses: actions/checkout@v2

	- name: Install dependencies
	run: \|
	stack update
	stack test --dependencies-only --fast

	- name: Build and test
	shell: cmd
	run: \|
	stack test --fast --test-arguments="--hide-successes --ansi-tricks=false"

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