diff --git a/README.md b/README.md
index 1c05b76..0ac81d2 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,7 @@ Use one of the userspace OOM killers.
 
 Of course, you can also [download more RAM](https://downloadmoreram.com/), tune [virtual memory](https://www.kernel.org/doc/Documentation/sysctl/vm.txt), use [zram](https://www.kernel.org/doc/Documentation/blockdev/zram.txt)/[zswap](https://www.kernel.org/doc/Documentation/vm/zswap.txt) and use [limits](https://www.freedesktop.org/software/systemd/man/systemd.resource-control.html) for cgroups.
 
-## Some features
+## Features
 
 - Sending the SIGTERM signal is default corrective action. If the victim does not respond to SIGTERM, with a further drop in the level of memory it gets SIGKILL;
 - Customizing victim selection: impact on the badness of processes via matching their names, cgroups, exe realpathes, environs, cmdlines and euids with specified regular expressions;
@@ -84,7 +84,7 @@ To show GUI notifications (optional):
 
 ## Memory and CPU usage
 
-- VmRSS is about 10–14 MiB instead of the settings, about 10–11 MiB by default.
+- VmRSS is about 10–14 MiB instead of the settings, about 10–11 MiB by default (with Python <= 3.8), about 16–17 MiB with Python 3.9.
 - CPU usage depends on the level of available memory and monitoring intensity.
 
 ## Warnings
@@ -95,7 +95,7 @@ To show GUI notifications (optional):
 
 ## Known problems
 
-- Awful documentation.
+- The documentation is terrible.
 - The ZFS ARC cache is memory-reclaimable, like the Linux buffer cache. However, in contrast to the buffer cache, it currently does not count to MemAvailable (see [openzfs/zfs#10255](https://github.com/openzfs/zfs/issues/10255)). See also https://github.com/rfjakob/earlyoom/pull/191 and https://github.com/hakavlad/nohang/issues/89.
 - Linux kernels without `CONFIG_CGROUP_CPUACCT=y` ([linux-ck](https://wiki.archlinux.org/index.php/Linux-ck), for example) provide incorrect PSI metrics, see [issue](https://github.com/hakavlad/nohang/issues/25#issuecomment-643716504).