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From: Robert Treat <[email protected]>
To: Ron Johnson <[email protected]>
Cc: Balaji Ram <[email protected]>
Cc: [email protected]
Subject: Re: Pg upgrade from 13.20 to 17.9
Date: Mon, 30 Mar 2026 15:26:27 -0400
Message-ID: <CABV9wwO0y8ew8_O6edT67UnQ07+NBeDueDQ6BF=zWFd0VUiVhA@mail.gmail.com> (raw)
In-Reply-To: <CANzqJaDnQnQnv-Ya2j5xT+rxpgsV9=7+jgGJab+eznsu2+ba-Q@mail.gmail.com>
References: <CACGXUKhSCXyKyfebbgzU=vb7O7=xMVRYn3gywoXyYJeUXvUALg@mail.gmail.com>
	<CANzqJaDnQnQnv-Ya2j5xT+rxpgsV9=7+jgGJab+eznsu2+ba-Q@mail.gmail.com>

On Mon, Mar 30, 2026 at 11:37 AM Ron Johnson <[email protected]> wrote:
> On Mon, Mar 30, 2026 at 4:16 AM Balaji Ram <[email protected]> wrote:
>>
>> Hi Everyone,
>>
>> I'm planning to upgrade a standalone PostgreSQL cluster from **13.20 to 17.9**. I haven’t performed a major version upgrade with such a large version gap before, so I’d appreciate any guidance on best practices, recommended approaches, and things to watch out for.
>
>
> 1. Read the PG 14, 15, 16 and 17 release notes.
> 2. Being on the latest is the latest release (in this case, 13.23) is always Best Practice.
>

+1 to the above, pay special attention to any incompatibilities
information. If you want to be really thorough, you should look at the
first few minor release for each branch to see if there are any system
catalog updates or reindexing type activities you need to deal with.

Also, if you have any extensions, you'll need to verify that those
will also survive such a big version jump; there's an outside chance
you may need to stop at some major version along the way.

Oh. and if you don't have a strong reason against it, most would
probably recommend you go to v18 at this point.


Robert Treat
https://xzilla.net

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