diff --git a/core/server/data/migrations/versions/2.0/2-update-posts.js b/core/server/data/migrations/versions/2.0/2-update-posts.js
index f0adafd710..7c5e6027ec 100644
--- a/core/server/data/migrations/versions/2.0/2-update-posts.js
+++ b/core/server/data/migrations/versions/2.0/2-update-posts.js
@@ -1,118 +1,7 @@
-const _ = require('lodash');
-const Promise = require('bluebird');
-const logging = require('../../../../../shared/logging');
-const mobiledocLib = require('../../../../lib/mobiledoc');
-const message1 = 'Updating posts: apply new editor format and set comment_id field.';
-const message2 = 'Updated posts: apply new editor format and set comment_id field.';
-const message3 = 'Rollback: Updating posts: use old editor format';
-const message4 = 'Rollback: Updated posts: use old editor format';
-
-module.exports.config = {
-    transaction: true
+module.exports.up = () => {
+    // noop - superceded by later majors performing re-render
 };
 
-let mobiledocIsCompatibleWithV1 = function mobiledocIsCompatibleWithV1(doc) {
-    if (doc
-        && doc.markups.length === 0
-        && doc.cards.length === 1
-        && doc.cards[0][0].match(/(?:card-)?markdown/)
-        && doc.sections.length === 1
-        && doc.sections[0].length === 2
-        && doc.sections[0][0] === 10
-        && doc.sections[0][1] === 0
-    ) {
-        return true;
-    }
-
-    return false;
-};
-
-module.exports.up = (options) => {
-    const postAllColumns = ['id', 'comment_id', 'html', 'mobiledoc'];
-
-    let localOptions = _.merge({
-        context: {internal: true},
-        migrating: true
-    }, options);
-
-    logging.info(message1);
-
-    // @NOTE: raw knex query, because of https://github.com/TryGhost/Ghost/issues/9983
-    return localOptions
-        .transacting('posts')
-        .select(postAllColumns)
-        .then((posts) => {
-            return Promise.map(posts, function (post) {
-                let mobiledoc;
-                let html;
-
-                try {
-                    mobiledoc = JSON.parse(post.mobiledoc || null);
-
-                    if (!mobiledoc) {
-                        mobiledoc = mobiledocLib.blankDocument;
-                    }
-                } catch (err) {
-                    logging.warn(`Invalid mobiledoc structure for ${post.id}. Falling back to blank structure.`);
-                    mobiledoc = mobiledocLib.blankDocument;
-                }
-
-                // CASE: convert all old editor posts to the new editor format
-                // CASE: if mobiledoc field is null, we auto set a blank structure in the model layer
-                // CASE: if html field is null, we auto generate the html in the model layer
-                if (mobiledoc && post.html && post.html.match(/^<div class="kg-card-markdown">/)) {
-                    html = mobiledocLib.mobiledocHtmlRenderer.render(mobiledoc);
-                }
-                return localOptions
-                    .transacting('posts')
-                    .where('id', '=', post.id)
-                    .update({
-                        comment_id: post.comment_id || post.id,
-                        html: html || post.html,
-                        mobiledoc: JSON.stringify(mobiledoc)
-                    });
-            }, {concurrency: 100});
-        }).then(() => {
-            logging.info(message2);
-        });
-};
-
-module.exports.down = (options) => {
-    const postAllColumns = ['id', 'html', 'mobiledoc'];
-
-    let localOptions = _.merge({
-        context: {internal: true},
-        migrating: true
-    }, options);
-
-    logging.info(message3);
-    return localOptions
-        .transacting('posts')
-        .select(postAllColumns)
-        .then((posts) => {
-            return Promise.map(posts, function (post) {
-                let version = 1;
-                let html;
-                let mobiledoc = JSON.parse(post.mobiledoc || null);
-
-                if (!mobiledocIsCompatibleWithV1(mobiledoc)) {
-                    version = 2;
-                }
-
-                // CASE: revert: all new editor posts to the old editor format
-                if (mobiledoc && post.html) {
-                    html = mobiledocLib.mobiledocHtmlRenderer.render(mobiledoc, {version});
-                }
-
-                return localOptions
-                    .transacting('posts')
-                    .where('id', '=', post.id)
-                    .update({
-                        html: html || post.html
-                    });
-            }, {concurrency: 100});
-        })
-        .then(() => {
-            logging.info(message4);
-        });
+module.exports.down = () => {
+    // noop - superceded by later majors performing re-render
 };
diff --git a/core/server/data/migrations/versions/3.0/11-update-posts-html.js b/core/server/data/migrations/versions/3.0/11-update-posts-html.js
index 65834dfdfd..7c5e6027ec 100644
--- a/core/server/data/migrations/versions/3.0/11-update-posts-html.js
+++ b/core/server/data/migrations/versions/3.0/11-update-posts-html.js
@@ -1,79 +1,7 @@
-const _ = require('lodash');
-const Promise = require('bluebird');
-const htmlToText = require('html-to-text');
-const logging = require('../../../../../shared/logging');
-const mobiledocLib = require('../../../../lib/mobiledoc');
-
-module.exports.config = {
-    transaction: true
+module.exports.up = () => {
+    // noop - superceded by later majors performing re-render
 };
 
-module.exports.up = (options) => {
-    const columns = ['id', 'html', 'mobiledoc', 'plaintext'];
-
-    let localOptions = _.merge({
-        context: {internal: true},
-        migrating: true
-    }, options);
-
-    logging.info('Starting re-generation of posts html.');
-    return localOptions
-        .transacting('posts')
-        .select(columns)
-        .then((posts) => {
-            return Promise.map(posts, function (post) {
-                let mobiledoc;
-
-                try {
-                    mobiledoc = JSON.parse(post.mobiledoc || null);
-
-                    if (!mobiledoc) {
-                        logging.warn(`No mobiledoc for ${post.id}. Skipping.`);
-                        return Promise.resolve();
-                    }
-                } catch (err) {
-                    logging.warn(`Invalid JSON structure for ${post.id}. Skipping.`);
-                    return Promise.resolve();
-                }
-
-                const html = mobiledocLib.mobiledocHtmlRenderer.render(mobiledoc);
-
-                const updatedAttrs = {
-                    html: html
-                };
-
-                // NOTE: block comes straight from the Post model (https://github.com/TryGhost/Ghost/blob/3.0.0/core/server/models/post.js#L416)
-                if (html !== post.html || !post.plaintext) {
-                    const plaintext = htmlToText.fromString(post.html, {
-                        wordwrap: 80,
-                        ignoreImage: true,
-                        hideLinkHrefIfSameAsText: true,
-                        preserveNewlines: true,
-                        returnDomByDefault: true,
-                        uppercaseHeadings: false
-                    });
-
-                    // CASE: html is e.g. <p></p>
-                    // @NOTE: Otherwise we will always update the resource to `plaintext: ''` and Bookshelf thinks that this
-                    //        value was modified.
-                    if (plaintext || plaintext !== post.plaintext) {
-                        updatedAttrs.plaintext = plaintext;
-                    }
-                }
-
-                return localOptions
-                    .transacting('posts')
-                    .where('id', '=', post.id)
-                    .update(updatedAttrs);
-            }, {concurrency: 100});
-        })
-        .then(() => {
-            logging.info('Finished re-generation of posts html.');
-        });
-};
-
-// There's nothing we can do on rollback, getting back to the previous html
-// would only be possible if the rollback was run against the 2.x codebase
 module.exports.down = () => {
-    return Promise.resolve();
+    // noop - superceded by later majors performing re-render
 };