diff --git a/pom.xml b/pom.xml
index c61b59b225..a3b27867e0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,7 +7,7 @@
   </parent>
 
   <artifactId>github-api</artifactId>
-  <version>1.51</version>
+  <version>1.52</version>
   <name>GitHub API for Java</name>
   <url>http://github-api.kohsuke.org/</url>
   <description>GitHub API for Java</description>
@@ -16,7 +16,7 @@
     <connection>scm:git:git@github.com/kohsuke/${project.artifactId}.git</connection>
     <developerConnection>scm:git:ssh://git@github.com/kohsuke/${project.artifactId}.git</developerConnection>
     <url>http://${project.artifactId}.kohsuke.org/</url>
-    <tag>github-api-1.51</tag>
+    <tag>HEAD</tag>
   </scm>
 
   <distributionManagement>
diff --git a/src/main/java/org/kohsuke/github/GHCommitQueryBuilder.java b/src/main/java/org/kohsuke/github/GHCommitQueryBuilder.java
new file mode 100644
index 0000000000..6d0a7ae995
--- /dev/null
+++ b/src/main/java/org/kohsuke/github/GHCommitQueryBuilder.java
@@ -0,0 +1,105 @@
+package org.kohsuke.github;
+
+import java.util.Date;
+
+/**
+ * Builds up query for listing commits.
+ *
+ * <p>
+ * Call various methods that set the filter criteria, then {@link #list()} method to actually list up the commit.
+ *
+ * <pre>
+ * GHRepository r = ...;
+ * for (GHCommit c : r.queryCommits().since(x).until(y).author("kohsuke")) {
+ *     ...
+ * }
+ * </pre>
+ *
+ * @author Kohsuke Kawaguchi
+ * @see GHRepository#queryCommits()
+*/
+public class GHCommitQueryBuilder {
+    private final Requester req;
+    private final GHRepository repo;
+
+    /*package*/ GHCommitQueryBuilder(GHRepository repo) {
+        this.repo = repo;
+        this.req = repo.root.retrieve();    // requester to build up
+    }
+
+    /**
+     * GItHub login or email address by which to filter by commit author.
+     */
+    public GHCommitQueryBuilder author(String author) {
+        req.with("author",author);
+        return this;
+    }
+
+    /**
+     * Only commits containing this file path will be returned.
+     */
+    public GHCommitQueryBuilder path(String path) {
+        req.with("path",path);
+        return this;
+    }
+
+    /**
+     * Specifies the SHA1 commit / tag / branch / etc to start listing commits from.
+     *
+     */
+    public GHCommitQueryBuilder from(String ref) {
+        req.with("sha",ref);
+        return this;
+    }
+
+    public GHCommitQueryBuilder pageSize(int pageSize) {
+        req.with("per_page",pageSize);
+        return this;
+    }
+
+    /**
+     * Only commits after this date will be returned
+     */
+    public GHCommitQueryBuilder since(Date dt) {
+        req.with("since",GitHub.printDate(dt));
+        return this;
+    }
+
+    /**
+     * Only commits after this date will be returned
+     */
+    public GHCommitQueryBuilder since(long timestamp) {
+        return since(new Date(timestamp));
+    }
+
+    /**
+     * Only commits before this date will be returned
+     */
+    public GHCommitQueryBuilder until(Date dt) {
+        req.with("until",GitHub.printDate(dt));
+        return this;
+    }
+
+    /**
+     * Only commits before this date will be returned
+     */
+    public GHCommitQueryBuilder until(long timestamp) {
+        return until(new Date(timestamp));
+    }
+
+    /**
+     * Lists up the commits with the criteria built so far.
+     */
+    public PagedIterable<GHCommit> list() {
+        return new PagedIterable<GHCommit>() {
+            public PagedIterator<GHCommit> iterator() {
+                return new PagedIterator<GHCommit>(req.asIterator(repo.getApiTailUrl("commits"), GHCommit[].class)) {
+                    protected void wrapUp(GHCommit[] page) {
+                        for (GHCommit c : page)
+                            c.wrapUp(repo);
+                    }
+                };
+            }
+        };
+    }
+}
diff --git a/src/main/java/org/kohsuke/github/GHEmail.java b/src/main/java/org/kohsuke/github/GHEmail.java
new file mode 100644
index 0000000000..5f230c5945
--- /dev/null
+++ b/src/main/java/org/kohsuke/github/GHEmail.java
@@ -0,0 +1,69 @@
+/*
+ * The MIT License
+ *
+ * Copyright (c) 2010, Kohsuke Kawaguchi
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package org.kohsuke.github;
+
+
+/**
+ * Represents an email of GitHub.
+ *
+ * @author Kelly Campbell
+ */
+public class GHEmail {
+
+    protected String email;
+    protected boolean primary;
+    protected boolean verified;
+
+    public String getEmail() {
+        return email;
+    }
+
+    public boolean isPrimary() {
+        return primary;
+    }
+
+    public boolean isVerified() {
+        return verified;
+    }
+
+
+    @Override
+    public String toString() {
+        return "Email:"+email;
+    }
+
+    @Override
+    public int hashCode() {
+        return email.hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj instanceof GHEmail) {
+            GHEmail that = (GHEmail) obj;
+            return this.email.equals(that.email);
+        }
+        return false;
+    }
+}
diff --git a/src/main/java/org/kohsuke/github/GHEventPayload.java b/src/main/java/org/kohsuke/github/GHEventPayload.java
index e805ef7eb4..704d7f8e81 100644
--- a/src/main/java/org/kohsuke/github/GHEventPayload.java
+++ b/src/main/java/org/kohsuke/github/GHEventPayload.java
@@ -51,6 +51,8 @@ public GHRepository getRepository() {
         @Override
         void wrapUp(GitHub root) {
             super.wrapUp(root);
+            if (pull_request==null)
+                throw new IllegalStateException("Expected pull_request payload, but got something else. Maybe we've got another type of event?");
             if (repository!=null) {
                 repository.wrap(root);
                 pull_request.wrap(repository);
diff --git a/src/main/java/org/kohsuke/github/GHMyself.java b/src/main/java/org/kohsuke/github/GHMyself.java
index c770f0449e..85c75c0971 100644
--- a/src/main/java/org/kohsuke/github/GHMyself.java
+++ b/src/main/java/org/kohsuke/github/GHMyself.java
@@ -1,6 +1,7 @@
 package org.kohsuke.github;
 
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashSet;
@@ -16,18 +17,31 @@
  * @author Kohsuke Kawaguchi
  */
 public class GHMyself extends GHUser {
+    /**
+     * @deprecated
+     *      Use {@link #getEmails2()}
+     */
+    public List<String> getEmails() throws IOException {
+        List<GHEmail> src = getEmails2();
+        List<String> r = new ArrayList<String>(src.size());
+        for (GHEmail e : src) {
+            r.add(e.getEmail());
+        }
+        return r;
+    }
+
     /**
      * Returns the read-only list of e-mail addresses configured for you.
      *
      * This corresponds to the stuff you configure in https://github.com/settings/emails,
      * and not to be confused with {@link #getEmail()} that shows your public e-mail address
      * set in https://github.com/settings/profile
-     * 
+     *
      * @return
      *      Always non-null.
      */
-    public List<String> getEmails() throws IOException {
-        String[] addresses = root.retrieve().to("/user/emails", String[].class);
+    public List<GHEmail> getEmails2() throws IOException {
+        GHEmail[] addresses = root.retrieve().to("/user/emails", GHEmail[].class);
         return Collections.unmodifiableList(Arrays.asList(addresses));
     }
 
diff --git a/src/main/java/org/kohsuke/github/GHOrganization.java b/src/main/java/org/kohsuke/github/GHOrganization.java
index 8501ba3763..0680ca39ca 100644
--- a/src/main/java/org/kohsuke/github/GHOrganization.java
+++ b/src/main/java/org/kohsuke/github/GHOrganization.java
@@ -23,10 +23,15 @@ public class GHOrganization extends GHPerson {
      *      Newly created repository.
      */
     public GHRepository createRepository(String name, String description, String homepage, String team, boolean isPublic) throws IOException {
-        return createRepository(name,description,homepage,getTeams().get(team),isPublic);
+        GHTeam t = getTeams().get(team);
+        if (t==null)
+            throw new IllegalArgumentException("No such team: "+team);
+        return createRepository(name,description,homepage,t,isPublic);
     }
 
     public GHRepository createRepository(String name, String description, String homepage, GHTeam team, boolean isPublic) throws IOException {
+        if (team==null)
+            throw new IllegalArgumentException("Invalid team");
         // such API doesn't exist, so fall back to HTML scraping
         return new Requester(root)
                 .with("name", name).with("description", description).with("homepage", homepage)
@@ -37,14 +42,41 @@ public GHRepository createRepository(String name, String description, String hom
      * Teams by their names.
      */
     public Map<String,GHTeam> getTeams() throws IOException {
-        GHTeam[] teams = root.retrieve().to("/orgs/" + login + "/teams", GHTeam[].class);
         Map<String,GHTeam> r = new TreeMap<String, GHTeam>();
-        for (GHTeam t : teams) {
-            r.put(t.getName(),t.wrapUp(this));
+        for (GHTeam t : listTeams()) {
+            r.put(t.getName(),t);
         }
         return r;
     }
 
+    /**
+     * List up all the teams.
+     */
+    public PagedIterable<GHTeam> listTeams() throws IOException {
+        return new PagedIterable<GHTeam>() {
+            public PagedIterator<GHTeam> iterator() {
+                return new PagedIterator<GHTeam>(root.retrieve().asIterator(String.format("/orgs/%s/teams", login), GHTeam[].class)) {
+                    @Override
+                    protected void wrapUp(GHTeam[] page) {
+                        for (GHTeam c : page)
+                            c.wrapUp(GHOrganization.this);
+                    }
+                };
+            }
+        };
+    }
+
+    /**
+     * Finds a team that has the given name in its {@link GHTeam#getName()}
+     */
+    public GHTeam getTeamByName(String name) throws IOException {
+        for (GHTeam t : listTeams()) {
+            if(t.getName().equals(name))
+                return t;
+        }
+        return null;
+    }
+
     /**
      * Checks if this organization has the specified user as a member.
      */
diff --git a/src/main/java/org/kohsuke/github/GHRelease.java b/src/main/java/org/kohsuke/github/GHRelease.java
index b862477ea7..0c405b33e2 100644
--- a/src/main/java/org/kohsuke/github/GHRelease.java
+++ b/src/main/java/org/kohsuke/github/GHRelease.java
@@ -32,6 +32,8 @@ public class GHRelease {
     private boolean prerelease;
     private Date created_at;
     private Date published_at;
+    private String tarball_url;
+    private String zipball_url;
 
     public String getAssetsUrl() {
         return assets_url;
@@ -153,6 +155,22 @@ public void setUrl(String url) {
         this.url = url;
     }
 
+    public String getZipballUrl() {
+        return zipball_url;
+    }
+
+    public void setZipballUrl(String zipballUrl) {
+        this.zipball_url = zipballUrl;
+    }
+
+    public String getTarballUrl() {
+        return tarball_url;
+    }
+
+    public void setTarballUrl(String tarballUrl) {
+        this.tarball_url = tarballUrl;
+    }
+
     GHRelease wrap(GHRepository owner) {
         this.owner = owner;
         this.root = owner.root;
diff --git a/src/main/java/org/kohsuke/github/GHRepository.java b/src/main/java/org/kohsuke/github/GHRepository.java
index 6a6b93ae73..7b12f08959 100644
--- a/src/main/java/org/kohsuke/github/GHRepository.java
+++ b/src/main/java/org/kohsuke/github/GHRepository.java
@@ -63,11 +63,11 @@ public class GHRepository {
     private boolean has_issues, has_wiki, fork, has_downloads;
     @JsonProperty("private")
     private boolean _private;
-    private int watchers,forks,open_issues,size;
+    private int watchers,forks,open_issues,size,network_count,subscribers_count;
     private String created_at, pushed_at;
     private Map<Integer,GHMilestone> milestones = new HashMap<Integer, GHMilestone>();
     
-    private String master_branch,language;
+    private String default_branch,language;
     private Map<String,GHCommit> commits = new HashMap<String, GHCommit>();
 
     private GHRepoPermission permissions;
@@ -153,8 +153,9 @@ public List<GHIssue> getIssues(GHIssueState state) throws IOException {
     public List<GHIssue> getIssues(GHIssueState state, GHMilestone milestone) throws IOException {
         return Arrays.asList(GHIssue.wrap(root.retrieve()
                 .to(String.format("/repos/%s/%s/issues?state=%s&milestone=%s", owner.login, name,
-                        state.toString().toLowerCase(), milestone == null ? "none" : "" + milestone.getNumber()),
-                        GHIssue[].class), this));
+                                state.toString().toLowerCase(), milestone == null ? "none" : "" + milestone.getNumber()),
+                        GHIssue[].class
+                ), this));
     }
 
     /**
@@ -219,6 +220,14 @@ public int getOpenIssueCount() {
         return open_issues;
     }
 
+    public int getNetworkCount() {
+        return network_count;
+    }
+
+    public int getSubscribersCount() {
+        return subscribers_count;
+    }
+
     /**
      *
      * @return
@@ -239,7 +248,7 @@ public Date getCreatedAt() {
      *      This field is null until the user explicitly configures the master branch.
      */
     public String getMasterBranch() {
-        return master_branch;
+        return default_branch;
     }
 
     public int getSize() {
@@ -498,6 +507,13 @@ protected void wrapUp(GHCommit[] page) {
         };
     }
 
+    /**
+     * Search commits by specifying filters through a builder pattern.
+     */
+    public GHCommitQueryBuilder queryCommits() {
+        return new GHCommitQueryBuilder(this);
+    }
+
     /**
      * Lists up all the commit comments in this repository.
      */
diff --git a/src/main/java/org/kohsuke/github/GitHub.java b/src/main/java/org/kohsuke/github/GitHub.java
index 167240d529..00f94bd04b 100644
--- a/src/main/java/org/kohsuke/github/GitHub.java
+++ b/src/main/java/org/kohsuke/github/GitHub.java
@@ -405,6 +405,10 @@ public boolean isCredentialValid() throws IOException {
         throw new IllegalStateException("Unable to parse the timestamp: "+timestamp);
     }
 
+    /*package*/ static String printDate(Date dt) {
+        return new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'").format(dt);
+    }
+
     /*package*/ static final ObjectMapper MAPPER = new ObjectMapper();
 
     private static final String[] TIME_FORMATS = {"yyyy/MM/dd HH:mm:ss ZZZZ","yyyy-MM-dd'T'HH:mm:ss'Z'"};
diff --git a/src/main/java/org/kohsuke/github/Requester.java b/src/main/java/org/kohsuke/github/Requester.java
index ef42a6e02f..e7e3e4674a 100644
--- a/src/main/java/org/kohsuke/github/Requester.java
+++ b/src/main/java/org/kohsuke/github/Requester.java
@@ -23,7 +23,7 @@
  */
 package org.kohsuke.github;
 
-import org.apache.commons.io.IOUtils;
+import static org.kohsuke.github.GitHub.MAPPER;
 
 import java.io.FileNotFoundException;
 import java.io.IOException;
@@ -31,11 +31,13 @@
 import java.io.InputStreamReader;
 import java.io.InterruptedIOException;
 import java.io.Reader;
+import java.io.UnsupportedEncodingException;
 import java.lang.reflect.Field;
 import java.net.HttpURLConnection;
 import java.net.MalformedURLException;
 import java.net.ProtocolException;
 import java.net.URL;
+import java.net.URLEncoder;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
@@ -47,7 +49,7 @@
 import java.util.Set;
 import java.util.zip.GZIPInputStream;
 
-import static org.kohsuke.github.GitHub.MAPPER;
+import org.apache.commons.io.IOUtils;
 
 /**
  * A builder pattern for making HTTP call and parsing its output.
@@ -208,9 +210,23 @@ private <T> T _to(String tailApiUrl, Class<T> type, T instance) throws IOExcepti
      *
      * Every iterator call reports a new batch.
      */
-    /*package*/ <T> Iterator<T> asIterator(final String tailApiUrl, final Class<T> type) {
+    /*package*/ <T> Iterator<T> asIterator(String _tailApiUrl, final Class<T> type) {
         method("GET");
-        if (!args.isEmpty())    throw new IllegalStateException();
+
+        if (!args.isEmpty()) {
+            boolean first=true;
+            try {
+                for (Entry a : args) {
+                    _tailApiUrl += first ? '?' : '&';
+                    first = false;
+                    _tailApiUrl += URLEncoder.encode(a.key,"UTF-8")+'='+URLEncoder.encode(a.value.toString(),"UTF-8");
+                }
+            } catch (UnsupportedEncodingException e) {
+                throw new AssertionError(e);    // UTF-8 is mandatory
+            }
+        }
+
+        final String tailApiUrl = _tailApiUrl;
 
         return new Iterator<T>() {
             /**
diff --git a/src/test/java/Foo.java b/src/test/java/Foo.java
index f5a88a34ae..e81431b112 100644
--- a/src/test/java/Foo.java
+++ b/src/test/java/Foo.java
@@ -1,12 +1,23 @@
+import org.kohsuke.github.GHOrganization;
+import org.kohsuke.github.GHTeam;
 import org.kohsuke.github.GitHub;
 
 import java.util.Arrays;
+import java.util.Map;
 
 /**
  * @author Kohsuke Kawaguchi
  */
 public class Foo {
     public static void main(String[] args) throws Exception {
-        System.out.println(GitHub.connect().getOrganization("cloudbees").getRepository("grandcentral").isPrivate());
+        GHOrganization org = GitHub.connect().getOrganization("jenkinsci");
+        Map<String, GHTeam> teams = org.getTeams();
+        System.out.println(teams.size());
+
+        int sz = 0;
+        for (GHTeam t : org.listTeams()) {
+            sz++;
+        }
+        System.out.println(sz);
     }
 }
diff --git a/src/test/java/org/kohsuke/AppTest.java b/src/test/java/org/kohsuke/AppTest.java
index 2847c0f8ec..09a6bdec70 100644
--- a/src/test/java/org/kohsuke/AppTest.java
+++ b/src/test/java/org/kohsuke/AppTest.java
@@ -40,6 +40,14 @@
 import org.kohsuke.github.GitHub;
 import org.kohsuke.github.PagedIterable;
 
+import java.io.IOException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.Map;
+import java.util.Set;
+import java.util.List;
+
 /**
  * Unit test for simple App.
  */
@@ -252,13 +260,30 @@ public void testMembership() throws Exception {
         Set<String> members = gitHub.getOrganization("jenkinsci").getRepository("violations-plugin").getCollaboratorNames();
         System.out.println(members.contains("kohsuke"));
     }
-    
+
     @Test
     public void testMemberOrgs() throws Exception {
         Set<GHOrganization> o = gitHub.getUser("kohsuke").getOrganizations();
         System.out.println(o);
     }
 
+    @Test
+    public void testOrgTeams() throws Exception {
+        kohsuke();
+        int sz=0;
+        for (GHTeam t : gitHub.getOrganization("jenkinsci").listTeams()) {
+            assertNotNull(t.getName());
+            sz++;
+        }
+        assertTrue(sz>1000);
+    }
+
+    public void testOrgTeamByName() throws Exception {
+        kohsuke();
+        GHTeam e = gitHub.getOrganization("jenkinsci").getTeamByName("Everyone");
+        assertNotNull(e);
+    }
+
     @Test
     public void testCommit() throws Exception {
         GHCommit commit = gitHub.getUser("jenkinsci").getRepository("jenkins").getCommit("08c1c9970af4d609ae754fbe803e06186e3206f7");
@@ -279,8 +304,19 @@ public void testListCommits() throws Exception {
             System.out.println(c.getSHA1());
             sha1.add(c.getSHA1());
         }
-        assertEquals("fdfad6be4db6f96faea1f153fb447b479a7a9cb7",sha1.get(0));
-        assertEquals(1,sha1.size());
+        assertEquals("fdfad6be4db6f96faea1f153fb447b479a7a9cb7", sha1.get(0));
+        assertEquals(1, sha1.size());
+    }
+
+    public void testQueryCommits() throws Exception {
+        List<String> sha1 = new ArrayList<String>();
+        for (GHCommit c : gitHub.getUser("jenkinsci").getRepository("jenkins").queryCommits()
+                .since(new Date(1199174400000L)).until(1201852800000L).path("pom.xml").list()) {
+            System.out.println(c.getSHA1());
+            sha1.add(c.getSHA1());
+        }
+        assertEquals("1cccddb22e305397151b2b7b87b4b47d74ca337b",sha1.get(0));
+        assertEquals(29,sha1.size());
     }
 
     @Test