ditch 1.6

Author: BeastyBlacksmith

.github/workflows/ci.yml

@@ -5,7 +5,7 @@ on:
     branches: [master]
   pull_request:
 
-concurrency: 
+concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
   cancel-in-progress: true
 
@@ -28,19 +28,19 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - '1.6' # LTS (minimal declared julia compat in `Project.toml`)
-          - '1.8' # latest stable
+          - '1.9' # (minimal declared julia compat in `Project.toml`)
+          # - '1.8' # latest stable
         os: [ubuntu-latest, windows-latest, macos-latest]
         arch: [x64]
         include:
           - os: ubuntu-latest
             prefix: xvfb-run  # julia-actions/julia-runtest/blob/master/README.md
-          - os: ubuntu-latest
-            prefix: xvfb-run
-            version: '1.7'  # only test intermediate release on `ubuntu` to spare resources
-          - os: ubuntu-latest
-            prefix: xvfb-run
-            version: '~1.9.0-0'  # upcoming julia version, next `rc`
+          # - os: ubuntu-latest
+          #   prefix: xvfb-run
+          #   version: '1.7'  # only test intermediate release on `ubuntu` to spare resources
+          # - os: ubuntu-latest
+          #   prefix: xvfb-run
+          #   version: '~1.9.0-0'  # upcoming julia version, next `rc`
           - os: ubuntu-latest
             prefix: xvfb-run
             version: 'nightly'

Project.toml

@@ -92,7 +92,7 @@ UnicodeFun = "0.4"
 UnicodePlots = "3.4"
 UnitfulLatexify = "1"
 Unzip = "0.1 - 0.2"
-julia = "1.6"
+julia = "1.9"
 
 [extras]
 Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"