diff --git a/slapp/commands.py b/slapp/commands.py
index 6df2d77..d47d1a0 100644
--- a/slapp/commands.py
+++ b/slapp/commands.py
@@ -1,13 +1,15 @@
 import typer
 import git
 
-from .main import app
-from .config import get_config, set_config
-from .utils import (
+from slapp.main import app
+from slapp.config import get_config, set_config
+from slapp.utils import (
     parse_changelogs_from_repo,
     write_changelogs_to_file,
     echo_changelog,
+    get_autoincremented_version,
 )
+from slapp.constants import VERSION_TYPES
 
 
 @app.command()
@@ -15,12 +17,33 @@ def init():
     set_config()
 
 
+def version_type_autocompletion(incomplete: str):
+    completion = []
+    for version_type in VERSION_TYPES:
+        if version_type.startswith(incomplete):
+            completion.append(version_type)
+    return completion
+
+
 @app.command()
-def release(version: str):
+def release(
+    manual_version: str = typer.Argument(
+        None,
+        help="Manually added version name",
+    ),
+    version_type: str = typer.Option(
+        VERSION_TYPES[1], '--type', '-t',
+        help=f'Version type: {", ".join(VERSION_TYPES)}',
+        autocompletion=version_type_autocompletion
+    ),
+    dry: bool = typer.Option(
+        False,
+        help='Do not perform any actions with git repo'
+    ),
+):
     config = get_config()
     if not config:
         return
-
     try:
         repo = git.Repo(config['repo_directory'].get())
     except git.NoSuchPathError:
@@ -37,10 +60,17 @@ def release(version: str):
 
     changelogs = parse_changelogs_from_repo(repo)
     changelog_file = config['changelog_file'].get()
+    version = manual_version or get_autoincremented_version(changelog_file, version_type)
+    if not version:
+        return
 
     write_changelogs_to_file(version, changelogs, changelog_file)
     echo_changelog(version, changelogs)
 
+    if dry:
+        typer.echo('Skipping git actions.')
+        return
+
     try:
         repo.git.add(changelog_file)
         repo.index.commit(f'Update {changelog_file}')
diff --git a/slapp/constants.py b/slapp/constants.py
new file mode 100644
index 0000000..4bab508
--- /dev/null
+++ b/slapp/constants.py
@@ -0,0 +1,10 @@
+CONFIG_FILE = 'slapp.yml'
+
+DEFAULT_CONFIG = {
+    'repo_directory': '.git',
+    'release_branch': 'main',
+    'changelog_file': 'CHANGELOG.md',
+    'bullet': '*',
+}
+
+VERSION_TYPES = ('major', 'minor', 'patch')
diff --git a/slapp/utils.py b/slapp/utils.py
index e392c2b..9528f9d 100644
--- a/slapp/utils.py
+++ b/slapp/utils.py
@@ -1,7 +1,9 @@
 import os
+import re
 import git
 import marko
 import typer
+from slapp.constants import VERSION_TYPES
 
 
 def extract_changelogs_from_commit(message: str or None,):
@@ -46,7 +48,7 @@ def echo_changelog(version, changelogs):
         ))
         typer.echo('\n'.join(changelogs))
     else:
-        typer.style('No changelog provided.', fg=typer.colors.YELLOW)
+        typer.echo(typer.style('No changelog provided.', fg=typer.colors.YELLOW))
 
 
 def write_changelogs_to_file(
@@ -67,3 +69,42 @@ def touchopen(filename, *args, **kwargs):
         f.seek(0)
         f.write(f'{version}\n{divider}\n{rendered_changelog}\n\n{content}')
         f.truncate()
+
+
+def get_autoincremented_version(changelog_file: str, version_type: str):
+    DEFAULT_VERSION = '0.1.0'
+    VERSION_REGEX = r'\d{1,}\.\d{1,}\.\d{1,}'
+
+    DEFAULT_ERR = "Couldn't generate a version number."
+
+    if version_type not in VERSION_TYPES:
+        typer.echo(
+            typer.style(
+                f'Version type is invalid, you should use one of theese: {", ".join(VERSION_TYPES)}',
+                fg=typer.colors.RED
+            )
+        )
+        return
+
+    if not os.path.isfile(changelog_file):
+        return DEFAULT_VERSION
+    try:
+        with open(changelog_file, "r") as file:
+            first_line = file.readline()
+    # TODO: use more specific exception
+    except Exception:
+        typer.echo(typer.style(DEFAULT_ERR, fg=typer.colors.RED))
+        return
+
+    match = re.match(VERSION_REGEX, first_line)
+    if not match:
+        typer.echo(typer.style(DEFAULT_ERR, fg=typer.colors.RED))
+        return
+
+    old_version = match.string
+    n_list = [int(i) for i in old_version.split('.')]
+    if version_type == 'major':
+        return f'{n_list[0] + 1}.0.0'
+    if version_type == 'minor':
+        return f'{n_list[0]}.{n_list[1] + 1}.0'
+    return f'{n_list[0]}.{n_list[1]}.{n_list[2] + 1}'