From patchwork Tue Aug 11 10:47:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Hajnoczi X-Patchwork-Id: 11709043 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 16C32618 for ; Tue, 11 Aug 2020 10:48:43 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id E053720756 for ; Tue, 11 Aug 2020 10:48:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="aTX0zz6E" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E053720756 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:35574 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k5Rph-0006gu-UU for patchwork-qemu-devel@patchwork.kernel.org; Tue, 11 Aug 2020 06:48:41 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43722) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k5Ros-00067c-NW for qemu-devel@nongnu.org; Tue, 11 Aug 2020 06:47:50 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:27663 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1k5Roq-0001nB-5j for qemu-devel@nongnu.org; Tue, 11 Aug 2020 06:47:49 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1597142866; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=Dt48sDSWlxZB9QQPIaHBPpb/bwOEKoiFUS77UHsynYE=; b=aTX0zz6EWr/HblmUcuOcYDBoa5HW7/aAWXbxB7EdZB2wOb6KR+JAV2Xcw8xdi0QC31GrMX aE92MDGQcbo5pX8XkQN5KmfcM07pgGwlIPQwNyZ4mmDf34jDDdvnyiRRI8mhLuFR+GIpRh r3H/RScl+vNaT1AzQnBWeqGCj7vLN6w= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-327-0LzkGOvwOcKhbdhQv0IcaA-1; Tue, 11 Aug 2020 06:47:45 -0400 X-MC-Unique: 0LzkGOvwOcKhbdhQv0IcaA-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 1C11F1902EA1; Tue, 11 Aug 2020 10:47:44 +0000 (UTC) Received: from localhost (ovpn-114-81.ams2.redhat.com [10.36.114.81]) by smtp.corp.redhat.com (Postfix) with ESMTP id CDA586F12F; Tue, 11 Aug 2020 10:47:37 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org Subject: [PATCH] docs/system: clarify deprecation scheduled Date: Tue, 11 Aug 2020 11:47:36 +0100 Message-Id: <20200811104736.17140-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=stefanha@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=207.211.31.120; envelope-from=stefanha@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/11 04:41:55 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -13 X-Spam_score: -1.4 X-Spam_bar: - X-Spam_report: (-1.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, MIME_BASE64_TEXT=1.741, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: libvir-list@redhat.com, philmd@redhat.com, Daniel Berrange , Stefan Hajnoczi , Peter Maydell Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" The sentence explaining the deprecation schedule is ambiguous. Make it clear that a feature deprecated in the Nth release is guaranteed to remain available in the N+1th release. Removal can occur in the N+2nd release or later. As an example of this in action, see commit 25956af3fe5dd0385ad8017bc768a6afe41e2a74 ("block: Finish deprecation of 'qemu-img convert -n -o'"). The feature was deprecated in QEMU 4.2.0. It was present in the 5.0.0 release and removed in the 5.1.0 release. Signed-off-by: Stefan Hajnoczi --- docs/system/deprecated.rst | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/docs/system/deprecated.rst b/docs/system/deprecated.rst index 851dbdeb8a..fecfb2f1c1 100644 --- a/docs/system/deprecated.rst +++ b/docs/system/deprecated.rst @@ -4,9 +4,9 @@ Deprecated features In general features are intended to be supported indefinitely once introduced into QEMU. In the event that a feature needs to be removed, it will be listed in this section. The feature will remain functional -for 2 releases prior to actual removal. Deprecated features may also -generate warnings on the console when QEMU starts up, or if activated -via a monitor command, however, this is not a mandatory requirement. +for 1 more release after deprecation. Deprecated features may also generate +warnings on the console when QEMU starts up, or if activated via a monitor +command, however, this is not a mandatory requirement. Prior to the 2.10.0 release there was no official policy on how long features would be deprecated prior to their removal, nor