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From: Antonio &lt;antdev66@gmail.com&gt;
Date: Thu, 20 Aug 2026 08:00:23 +0200
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Message-ID: &lt;CAPx8OcuHptrFusXw-Jr0N+9koR46ufTyUMX51ciPPeDcV5OWmw@mail.gmail.com&gt;
Subject: flatpak update fails: Decompressed delta part exceeds configured limit
To: submit@bugs.debian.org
Content-Type: multipart/alternative; boundary=&quot;000000000000f08df10659743d54&quot;
Delivered-To: submit@bugs.debian.org

--000000000000f08df10659743d54
Content-Type: text/plain; charset=&quot;UTF-8&quot;
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Package: flatpak
Version: 1.18.1-1
Severity: normal
X-Debbugs-Cc: antdev66@gmail.com

Dear Maintainer,
I am encountering a failure during the update process of certain Flatpak
applications: the update process is interrupted with an error regarding the
decompressed delta limit.

Steps to reproduce:
-  Run flatpak update when an update for a large application (e.g.,
org.mozilla.firefox) is available.
- Observe the process during the download/extraction phase.

Actual behavior:
The update fails for specific packages with the following error message:
&quot;Error: While pulling app/org.mozilla.firefox/x86_64/stable from remote
flathub: Decompressed delta part exceeds configured limit of 76330069 bytes=
&quot;

Expected behavior:
The update should complete successfully regardless of the delta size, or
the limit should be adjusted to accommodate modern application update sizes=
.

Logs/Output:

|$ flatpak update

|Looking for updates=E2=80=A6
|
|        ID                           Branch          Op         Remote
     Download
| 1. [=E2=9C=93] org.gimp.GIMP                stable          u          fl=
athub
      652,1 kB / 99,7 MB
| 2. [=E2=9C=97] org.mozilla.firefox          stable          u          fl=
athub
      100,4 MB / 125,6 MB

Error: While pulling app/org.mozilla.firefox/x86_64/stable from remote
flathub: Decompressed delta part exceeds configured limit of 76330069 bytes

Thanks,
Antonio

--000000000000f08df10659743d54
Content-Type: text/html; charset=&quot;UTF-8&quot;
Content-Transfer-Encoding: quoted-printable

&lt;div dir=3D&quot;ltr&quot;&gt;Package: flatpak&lt;br&gt;Version: 1.18.1-1&lt;br&gt;Severity: normal&lt;=
br&gt;X-Debbugs-Cc: &lt;a href=3D&quot;mailto:antdev66@gmail.com&quot;&gt;antdev66@gmail.com&lt;/=
a&gt;&lt;br&gt;&lt;br&gt;Dear Maintainer,&lt;br&gt;I am encountering a failure during the update=
 process of certain Flatpak applications: the update process is interrupted=
 with an error regarding the decompressed delta limit.&lt;br&gt;&lt;br&gt;Steps to repr=
oduce:&lt;br&gt;- =C2=A0Run flatpak update when an update for a large application=
 (e.g., org.mozilla.firefox) is available.&lt;br&gt;- Observe the process during =
the download/extraction phase.&lt;br&gt;&lt;br&gt;Actual behavior:&lt;br&gt;The update fails =
for specific packages with the following error message: &quot;Error: While =
pulling app/org.mozilla.firefox/x86_64/stable from remote flathub: Decompre=
ssed delta part exceeds configured limit of 76330069 bytes&quot;&lt;br&gt;&lt;br&gt;Exp=
ected behavior:&lt;br&gt;The update should complete successfully regardless of th=
e delta size, or the limit should be adjusted to accommodate modern applica=
tion update sizes.&lt;br&gt;&lt;br&gt;Logs/Output:&lt;br&gt;&lt;br&gt;|$ flatpak update =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 &lt;br&gt;|Looking for updates=E2=80=A6&lt;br&gt;|&lt;br&gt;|=C2=A0 =C2=A0 =C2=A0 =
=C2=A0 ID =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Branch =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Op =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 Remote =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Download&lt;=
br&gt;| 1. [=E2=9C=93] org.gimp.GIMP =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0stable =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0u =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0flathub =C2=A0 =C2=A0 =C2=A0 =C2=A0 652,1 kB / 99,7 MB&lt;br&gt;=
| 2. [=E2=9C=97] org.mozilla.firefox =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0stab=
le =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0u =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0fl=
athub =C2=A0 =C2=A0 =C2=A0 =C2=A0 100,4 MB / 125,6 MB&lt;br&gt;&lt;br&gt;Error: While p=
ulling app/org.mozilla.firefox/x86_64/stable from remote flathub: Decompres=
sed delta part exceeds configured limit of 76330069 bytes&lt;br&gt;&lt;br&gt;Thanks,&lt;br=
&gt;Antonio&lt;/div&gt;

--000000000000f08df10659743d54--
]