diff --git a/cran-comments.md b/cran-comments.md
index 128a58b..6cf8a2a 100644
--- a/cran-comments.md
+++ b/cran-comments.md
@@ -1,78 +1,19 @@
-## Relation between 0.5.9 and 0.5.8
-If you haven't checked 0.5.8 yet, you can just skip it and use 0.5.9 (unless 0.5.8 is OK and 0.5.9 not)
-
 ## Test environments
-* local Fedora 32 with R version 3.6.3
-* CentOS 7.7
-* win builder (devel)
-* R-hub builder
-* github workflow with checks on Ubuntu, Mac and Windows with R 4.0
+* local Fedora 33 with R version 4.0.4
+* centos-release-7-9.2009.1.el7.centos.x86_64 with R version 3.6.0
+* R-hub: Windows Server 2008 R2 SP1, R-devel, 32/64 bit
+    * executed with: `rhub::check(platform="windows-x86_64-devel", env_vars=c(R_COMPILE_AND_INSTALL_PACKAGES = "always"))`
+* R-hub: Ubuntu Linux 20.04.1 LTS, R-release, GCC
+* R-hub: Fedora Linux, R-devel, clang, gfortran
+* github workflow with checks on Ubuntu, Mac and Windows with R 3.6 and 4.0
 
-## local R CMD check results
+## Check results on all platforms
 ```
-── R CMD check results ───────────────────────────────── RKorAPClient 0.5.9 ────
-Duration: 3m 38.4s
-
 0 errors ✓ | 0 warnings ✓ | 0 notes ✓
-
-R CMD check succeeded
 ```
 
-## https://cran.rstudio.com//web/checks/check_results_RKorAPClient.html
-
-Fixed already in v0.5.8: Donttest compatibility issues with dplyr 1.0.0:
-https://www.stats.ox.ac.uk/pub/bdr/donttest/RKorAPClient.out
-
-## R-hub on Windows Server 2008 R2 SP1, R-devel, 32/64 bit
-… reports the following dependency issue which, however, does not appear on any other test build (win builder, mac, Ubuntu, Fedora) and seems unrelated to RKorAPClient:
-
-```
- 877#> trying URL 'https://cloud.r-project.org/bin/windows/contrib/4.1/PTXQC_1.0.4.zip'
-
- 878#> Content type 'application/zip' length 4038469 bytes (3.9 MB)
-
- 879#> ==================================================
-
- 880#> downloaded 3.9 MB
-
- 881#> setting _R_CHECK_FORCE_SUGGESTS_ to false
-
- 882#> setting R_COMPILE_AND_INSTALL_PACKAGES to never
-
- 883#> setting _R_CHECK_THINGS_IN_CHECK_DIR_ to false
-
- 884#> setting R_REMOTES_STANDALONE to true
-
- 885#> setting R_REMOTES_NO_ERRORS_FROM_WARNINGS to true
-
- 886#> setting _R_CHECK_FORCE_SUGGESTS_ to true
-
- 887#> setting _R_CHECK_CRAN_INCOMING_USE_ASPELL_ to true
-
- 888#> * installing to library 'C:/Users/USERSHFYCydkVg/R'
-
- 889#> * installing *source* package 'RKorAPClient' ...
-
- 890#> ** using staged installation
-
- 891#> ** R
-
- 892#> ** demo
-
- 893#> ** byte-compile and prepare package for lazy loading
-
- 894#> Error in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]) :
-
- 895#> namespace 'vctrs' 0.2.4 is being loaded, but >= 0.3.0 is required
-
- 896#> Calls: ... namespaceImport -> loadNamespace -> namespaceImport -> loadNamespace
-
- 897#> Execution halted
-
- 898#> ERROR: lazy loading failed for package 'RKorAPClient'
-
- 899#> * removing 'C:/Users/USERSHFYCydkVg/R/RKorAPClient'
-```
-
-## testthat duration
-I've tried to reduce the time required for the tests.
+## Notes
+* The version bump was partially due to the dropped support for the orphaned plotly package.
+  (Initially deprecating the abandoned functions seemed not necessary here, as they were marked as risky and unmaintained from the outset.)
+* Tests might be slightly slow sometimes because it's a web service client library 
+and avoiding a mock web server still seems preferable.