Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 3DBEDB22 for ; Sat, 10 Sep 2016 01:48:42 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-vk0-f53.google.com (mail-vk0-f53.google.com [209.85.213.53]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id B9E12201 for ; Sat, 10 Sep 2016 01:48:41 +0000 (UTC) Received: by mail-vk0-f53.google.com with SMTP id f76so83276790vke.0 for ; Fri, 09 Sep 2016 18:48:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=V+hLADDHZ+txIL044953dsfC1+LHGzDJkh2YBnz0mZo=; b=izHmcHFpM9R17DM41OmPnjWLXujxurNWvAvb9XCEnOqVguOL1OZZ7Hpt6lJV2fWUnH tbec5jwb+cPVyy4Vx5thpYTVsqZRUbslTyDVlU48iNhUoy5vuauz8iVhJE5iGJlzjux1 Si100n5BmFEgIzVuD4zHCuJGZ9y56f/RNn1m3LmGFtxsbiQkYk+7uulotWCD2F22uJd/ sXem7+00QithbHRsQWntWQ2k3IGsNgb1KZVsWhCv8DMLr/VslNctdgTOP2p2gZWAr77s acl59GpedVilPsyK0oGiGLROXvAtoilVTruueN9M6fb3DdDNy/m+ECeOspJWDgScRKmF Rm1A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=V+hLADDHZ+txIL044953dsfC1+LHGzDJkh2YBnz0mZo=; b=Tnym3Qa7ZG6o+MHk0UL/jCKuJcxQzzqGDJgF+VWZfi+XIZqVqyvaQ/KmLFenQkAHMD 4iUNVsk05DZcnGyVZceJvBEvuGgi5ur84YLqlW6k1pSz8ceY/9HeNNOw1wNZfZJFqo3Y ZH7QIPytAV0zUsbkEMnkycGBbHZjlBAuxwps8UaiTnMsd8QdBruRMShe4OtqiOwhwIS6 9hCVIbvKWHN/hjqZ+ySr0kYCIcPte8w5qTD0B79ERDSDHUuFY+B7wukPQYVvkmaMWOsx kRbLfeLkssvfZbR3SnrA/mOFN1s70UFH71mySrs+kfxoQ9MvOAM4oyv/xAXKPJBIVFgb jpyQ== X-Gm-Message-State: AE9vXwMAJxuxM0qT/77W6UMrg7daIC4vG9QaJvl5DqKyKKaP0dAv25LUiMmRN4Jm/kwDGf8lMqM1XZmI7VzK0Q== X-Received: by 10.31.98.133 with SMTP id w127mr4578136vkb.29.1473472120937; Fri, 09 Sep 2016 18:48:40 -0700 (PDT) MIME-Version: 1.0 Sender: gmaxwell@gmail.com Received: by 10.103.118.69 with HTTP; Fri, 9 Sep 2016 18:48:40 -0700 (PDT) In-Reply-To: <20160910005802.GA24954@fedora-21-dvm> References: <20160910005802.GA24954@fedora-21-dvm> From: Gregory Maxwell Date: Sat, 10 Sep 2016 01:48:40 +0000 X-Google-Sender-Auth: AWqQVVVNkfC8Dg7SQQYFsbrIyyc Message-ID: To: Peter Todd Content-Type: text/plain; charset=UTF-8 X-Spam-Status: No, score=-0.2 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, FREEMAIL_FROM, RCVD_IN_DNSWL_LOW, RCVD_IN_SORBS_SPAM autolearn=no version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Cc: Bitcoin Protocol Discussion Subject: Re: [bitcoin-dev] Completing the retirement of the alert system X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Bitcoin Protocol Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 Sep 2016 01:48:42 -0000 On Sat, Sep 10, 2016 at 12:58 AM, Peter Todd wrote: > Good to do this sooner rather than later, as alert propagation on the P2P > network is going to continue to get less reliable as nodes upgrade to software Yes, this was one of my motivations for doing this soon. It would only require about 2 LOC to have Bitcoin Core vomit out a blob containing the final alert to any old protocol version peers that connect. I don't know how other people would feel about that, but I wouldn't mind implementing it, and it would greatly improve the likelihood that they continue to to get once propagation of it is gone. This could be left in the codebase for a couple years or until other changes made those old versions p2p incompatible for other reasons.