Clarify versioning policy (#701)

i.e. that it applies to r-lib too.

And generally polish the page

.gitignore

@@ -5,3 +5,5 @@
 public
 .DS_Store
 README.html
+
+/.quarto/

content/blog/2019/r-version-support/index.md

@@ -15,36 +15,24 @@ rmd_hash: efe6168c59ef5121
 
 ---
 
-## Which versions of R do tidyverse packages support?
+Our general policy is to support the **current version**, the **devel version**, and **four previous versions** of R. This policy applies to all packages that we support, i.e. as well as all tidyverse packages, it also applies to the infrastructure packages that we maintain in [r-lib](https://github.com/r-lib).
 
-Though package-specific minimum versions of R are given in the `Depends` fields of individual `DESCRIPTION` files, our general policy is to support the **current version**, the **devel version**, and **four previous versions** of R.
+Thus the *official* minimum supported versions of R for the tidyverse are as follows:
 
-**Edit 2022-11-15[^1]**
+| R version | Release date  | Minimum supported version |
+|:--------- |:--------------|:--------------------------|
+| 3.6       | 2019-04-26    | 3.2                       |
+| 4.0       | 2020-04-24    | 3.3                       |
+| 4.1       | 2021-05-18    | 3.4                       |
+| 4.2       | 2022-04-22    | 3.5                       |
+| 4.3       | 2023-04-21    | 3.6                       |
+| 4.4       | 2024-04-24    | 4.0                       |
+| 4.5       | 2025 Spring   | 4.1                       |
+| 4.6       | 2026 Spring   | 4.2                       |
 
-Over the past several years and moving forward (as described in the "Release plans" section of the [R Developer Page](https://developer.r-project.org/)), R version releases occur annually:
+Note that, as described in the R Developer ["Release plans"](https://developer.r-project.org/), R version releases occur annually in Spring. We generally update the required version in package metadata on the next package release after the R release, so you may see older versions listed in published CRAN packages.
 
-> The overall release schedule is to have annual x.y.0 releases in Spring, with patch releases happening on an as-needed basis.
-
-Thus, the *official* minimum supported versions of R for the tidyverse[^2] are as described in the table, below.
-
-<div class="highlight">
-
-| Year | Current R version | Minimum supported version |
-|-----:|:------------------|:--------------------------|
-| 2019 | 3.6               | 3.2                       |
-| 2020 | 4.0               | 3.3                       |
-| 2021 | 4.1               | 3.4                       |
-| 2022 | 4.2               | 3.5                       |
-| 2023 | 4.3               | 3.6                       |
-| 2024 | 4.4               | 4.0                       |
-| 2025 | 4.5               | 4.1                       |
-| 2026 | 4.6               | 4.2                       |
-
-Tidyverse minimum R version support
-
-</div>
-
-[^1]: Add table with annual historic and projected R-version support.
-
-[^2]: Note that older versions *may* be supported. For example, as of 2022, the [tidyverse package `Depends` field](https://github.com/tidyverse/tidyverse/blob/aeabcde8c6ae435f16b5173682d5667d292829fb/DESCRIPTION#LL17-L18) is R (\>= 3.3).
+### Edit history
 
+* 2022-11-15: Added table with annual historic and projected R-version support.
+* 2024-07-03: Clarified that the policy also applies to r-lib and added release dates.