software-center doesn't list packages installed, updated nor removed during release upgrade

[Osmo Laitinen]

I upgraded to 12.04 on 14.3:
UpgradeStatus: Upgraded to precise on 2012-03-14

However software center shows only about 30 updates on that day (I checked a few and those seems to be 12.04 updates).
There is updates and installations after 2012-03-14, but no removals. Although I'm pretty sure that 12.04 has also removed some packages.
---
ApportVersion: 1.95-0ubuntu1
Architecture: amd64
DistroRelease: Ubuntu 12.04
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
NonfreeKernelModules: nvidia
Package: software-center 5.1.13.1
PackageArchitecture: all
ProcVersionSignature: Ubuntu 3.2.0-20.32-generic 3.2.12
Tags: precise
Uname: Linux 3.2.0-20-generic x86_64
UpgradeStatus: Upgraded to precise on 2012-03-14 (10 days ago)
UserGroups: adm admin fuse users

[Osmo Laitinen (osmo-laitinen)]

Actually no removals since 25 feb.

[Osmo Laitinen (osmo-laitinen)]

apport information

[Osmo Laitinen (osmo-laitinen)]

apport information

[Osmo Laitinen (osmo-laitinen)]

apport information

[Michael Vogt (mvo)]

Thanks for your bugreport.

The release upgrades are handled specially, this is why its not appearing there. But I agree that it would be
useful to show the summary of the changes in software-centers history too.

For the technical details: /var/log/apt/history.log is probably not updated properly by the release upgrader.