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PluginCanary
Limited data: this plugin has under 1,000 active installs and less than 12 weeks of history with us, so we show signals but no status band yet.

Upgrade Notification by Email

by kkarpieszuk · 10+ active installs · Checked 4 Nov 2026
Limited data1 Critical1 Warning

Limited data: Upgrade Notification by Email has under 1,000 active installs and less than 12 weeks of history, so we do not rate it yet.

59/ 100Limited data
Canary Score

Based on 3 of 5 areas

Capped at 59: a Critical signal is open.

Sub-scores for Upgrade Notification by Email
Ownership100
Maintenance0
Security100
SupportNo data
ReputationNo data

How the score works

Active signals

Open issues right now, with links to the source.

  • CriticalMNT-1No release in 199 months (last release 21 Jun 2010). Plan a replacement if the plugin is important to your site.21 Jun 2011Evidence
  • WarningMNT-2Tested up to WordPress 3.0.5, 41 major versions behind 7.1.4. Plan a replacement if the plugin is important to your site.3 Nov 2026Evidence

Quick answers

Is Upgrade Notification by Email still maintained?
No. Last release 21 Jun 2010, over 16 years ago. 21 Jun 2010 · wordpress.org
Who owns Upgrade Notification by Email, and has it changed hands?
No change recorded. 4 Nov 2026 · SVN log
Was Upgrade Notification by Email removed from wordpress.org?
No. Listed on wordpress.org as of 4 Nov 2026. 4 Nov 2026 · wordpress.org
Is Upgrade Notification by Email safe?
No known vulnerabilities on record. 4 Nov 2026 · Wordfence Intelligence
Is the latest Upgrade Notification by Email update safe to install?
No ownership change before 0.4. No one-star spike after it. 15 Sep 2009 · Release history

Ownership timeline

Who commits to the plugin's code on wordpress.org, over time.

No ownership changes recorded since 2009.

Maintenance

Last release
16 years ago
Releases, 24 months
0
Tested up to
3.0 vs 7.1
Requires PHP
not stated supported 8.2+
Releases per quarter
Releases per quarter for Upgrade Notification by Email
Q1 20240
Q2 20240
Q3 20240
Q4 20240
Q1 20250
Q2 20250
Q3 20250
Q4 20250
Q1 20260
Q2 20260
Q3 20260
Q4 20260

Last release 21 Jun 2010. Tested up to 3.0, 41 major versions behind WordPress 7.1.

Support

Resolved, last 2 months
n/a
Threads, last 2 months
0

Trend appears after 8 weekly snapshots.

Security record

No published vulnerabilities on record for this plugin.

Sources: Wordfence Intelligence, CISA Known Exploited Vulnerabilities, readme changelogs.

Reputation

Last 90 days: no reviews.

Rating distribution
5 star0
4 star0
3 star0
2 star0
1 star0

Momentum

Active installs
10+

Trend appears after 8 weekly snapshots.

Facts

Version
0.4
Author
kkarpieszuk
Added
6 Sep 2009
Last updated
21 Jun 2010
Active installs
10+
Requires WordPress
2.0.2
Tested up to
3.0.5
Requires PHP
not stated
Category
not stated
Tags
mail, upgrade, security, notification

Other plugins by this author: WC Price History, Native Custom Fields Meta Box and ACF, Youtube Add Video, Z Flakera na Blog, Editor Box, Kolibia Agent-Ready, Asystent WPzlecenia

Questions about Upgrade Notification by Email

Is Upgrade Notification by Email still maintained?

No. Last release 21 Jun 2010, over 16 years ago.

Who owns Upgrade Notification by Email, and has it changed hands?

No change recorded.

Was Upgrade Notification by Email removed from wordpress.org?

No. Listed on wordpress.org as of 4 Nov 2026.

Is Upgrade Notification by Email safe?

No known vulnerabilities on record.

Is the latest Upgrade Notification by Email update safe to install?

No ownership change before 0.4. No one-star spike after it.

Data: wordpress.org Plugins API, plugins SVN and Trac, wordpress.org reviews and support forum, Wordfence Intelligence, CISA KEV, NVD.Plugin data refreshed 4 Nov 2026.Report a data issue