From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp0 ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms0.migadu.com with LMTPS id +IH+MUfbl2BqWAEAgWs5BA (envelope-from ) for ; Sun, 09 May 2021 14:53:27 +0200 Received: from aspmx1.migadu.com ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp0 with LMTPS id oL3JLUfbl2CDBgAA1q6Kng (envelope-from ) for ; Sun, 09 May 2021 12:53:27 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 7E01BB04D for ; Sun, 9 May 2021 14:53:27 +0200 (CEST) Received: from localhost ([::1]:55680 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lfiw2-00080f-Mr for larch@yhetil.org; Sun, 09 May 2021 08:53:26 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50782) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lfivt-00080W-S6 for guix-devel@gnu.org; Sun, 09 May 2021 08:53:17 -0400 Received: from smtprelay03.ispgateway.de ([80.67.18.15]:47959) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lfivs-0002dH-5y for guix-devel@gnu.org; Sun, 09 May 2021 08:53:17 -0400 Received: from [78.54.138.239] (helo=[192.168.178.25]) by smtprelay03.ispgateway.de with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.92.3) (envelope-from ) id 1lfivs-0003vq-IM; Sun, 09 May 2021 14:53:16 +0200 Subject: Re: Expat 2.3.0 has been released To: Maxime Devos , guix-devel@gnu.org References: <102746ca-be9b-bfb4-efcf-899abab4d5d7@pipping.org> <20afb227-5e89-e416-4ca4-12bd0ac98a29@pipping.org> <565eaa11163d5bc416387217ca8c6d6718608246.camel@telenet.be> From: Sebastian Pipping Message-ID: <06caf5b8-aa84-d2dd-9fa7-5bb35846194c@pipping.org> Date: Sun, 9 May 2021 14:53:09 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.0 MIME-Version: 1.0 In-Reply-To: <565eaa11163d5bc416387217ca8c6d6718608246.camel@telenet.be> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Df-Sender: aGFydHdvcmtAYmluZXJhLmRl Received-SPF: none client-ip=80.67.18.15; envelope-from=sebastian@pipping.org; helo=smtprelay03.ispgateway.de X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, NICE_REPLY_A=-0.001, SPF_HELO_PASS=-0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Migadu-Flow: FLOW_IN ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1620564807; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post; bh=pESY9L46yj4XqaxBQ0zSSP/rCeITSZ6qebG7zQ23C8Q=; b=BsBHwo+29JoqCV7HmaAe7UB79Ne1DjGdg+Q63iLPi0iYA6m75YmpfWLSkXXl2uHxR3/Okx Trg5omTA1JU/WrKZ+KVhi/bgj13XudaI2gKILvWkVxRME3sDZZ3dKagTN4EpVJmTTuLoNV QAbuA08ug1VPO6viPT6JP50N2bAGXkqMRJo/BQ0AayusJ9sXUoL9b8WSeoN3d6I7PYrqs1 KJcnJ7QsM3VyCKD3M/1Huu2WjFs+MdM0a3lFgldufcQVagFzj6UmKQxLU82fpblmuJTz5S 2SQ7y2OvOTPNvNJzetJjVO/KrLAQNYVS2ltEot5jVd7zkS3BZ5GIVkMCKGo4Vw== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1620564807; a=rsa-sha256; cv=none; b=PEDsQul8RWhpDz84NWbGY/0b/nMSgJvRDsOCbJ0L7ZZMNmDJjo7howQcAjfBHeTUnMU9Ye enYdXoulYvbzttdyZ1rJRqXJtFjj43GFC01KcuBss0fGBylZmGUJmD2clMLrQQb5K5d/my hPsoZtIwN1Z/FGLaIzL/X6V/oBuYDd1OVCXddaXK9Pmp+B8n0F3DQVIrTAYP3o6fJ6+91I vG/DqFFTT8JFcZLS2Ks3qv/CbRcGkp4Z2V4FSHv5beZxaN08MUzC2uNE7sxhDftBOtScV7 egMtPZNjpQtP+ioLTqtNqiZb4pwZX0G5WrJAV6V4KIJFxNasbQinN0fJUlvTGQ== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=none; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Migadu-Spam-Score: -2.45 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Migadu-Queue-Id: 7E01BB04D X-Spam-Score: -2.45 X-Migadu-Scanner: scn0.migadu.com X-TUID: KtxUeKPvCDiw Hi Maxime, On 09.05.21 11:17, Maxime Devos wrote: > I see Leo Prikler has already sent a patch (48304@debbugs.gnu.org). yes, thanks for you interest in the topic. On 09.05.21 11:12, Maxime Devos wrote: > According to "guix refresh -l", simply updating expat would entail rebuilding 6031 > packages. This can be avoided is v2.4.0 is binary compatible with v2.2.9. > Is this the case? The short answer is: there is no break of ABI. A longer answer would include that the next release will also be hiding a previously exposed internal symbol by the name "_INTERNAL_trim_to_complete_utf8_characters". I don't consider that an ABI break but we'll probably find someone who does, on a technical level. The related soversions are: 2.2. 9 = 7:11:6 -> libexpatso.1.6.11 (GUIX today) 2.2.10 = 7:12:6 -> libexpatso.1.6.12 2.3. 0 = 8: 0:7 -> libexpatso.1.7.0 (GUIX W.I.P.) 2.4. 0 = 9: 0:8 -> libexpatso.1.8.0 (upcoming) I wish related tool https://verbump.de/ was more widely known. Best Sebastian