diff --git a/Cargo.toml b/Cargo.toml
index 0f0dd2c6..a5189abd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ibapi"
-version = "1.0.11"
+version = "1.1.0"
 edition = "2021"
 authors = ["Wil Boayue <wil@wsbsolutions.com>"]
 description = "A Rust implementation of the Interactive Brokers TWS API, providing a reliable and user friendly interface for TWS and IB Gateway. Designed with a focus on simplicity and performance."
diff --git a/README.md b/README.md
index b4bd23c7..3430d468 100644
--- a/README.md
+++ b/README.md
@@ -86,7 +86,7 @@ fn main() {
     let historical_data = client
         .historical_data(
             &contract,
-            datetime!(2023-04-11 20:00 UTC),
+            Some(datetime!(2023-04-11 20:00 UTC)),
             1.days(),
             BarSize::Hour,
             WhatToShow::Trades,
diff --git a/examples/historical_data.rs b/examples/historical_data.rs
index 98e74c60..98e7ec94 100644
--- a/examples/historical_data.rs
+++ b/examples/historical_data.rs
@@ -24,7 +24,7 @@ fn main() {
     let historical_data = client
         .historical_data(
             &contract,
-            datetime!(2023-04-11 20:00 UTC),
+            Some(datetime!(2023-04-11 20:00 UTC)),
             1.days(),
             BarSize::Hour,
             WhatToShow::Trades,
diff --git a/examples/historical_data_options.rs b/examples/historical_data_options.rs
new file mode 100644
index 00000000..98e7ec94
--- /dev/null
+++ b/examples/historical_data_options.rs
@@ -0,0 +1,40 @@
+use clap::{arg, Command};
+use time::macros::datetime;
+
+use ibapi::contracts::Contract;
+use ibapi::market_data::historical::{BarSize, ToDuration, WhatToShow};
+use ibapi::Client;
+
+fn main() {
+    env_logger::init();
+
+    let matches = Command::new("historical_data")
+        .about("Get last 30 days of daily data for given stock")
+        .arg(arg!(<STOCK_SYMBOL>).required(true))
+        .arg(arg!(--connection_string <VALUE>).default_value("127.0.0.1:4002"))
+        .get_matches();
+
+    let connection_string = matches.get_one::<String>("connection_string").expect("connection_string is required");
+    let stock_symbol = matches.get_one::<String>("STOCK_SYMBOL").expect("stock symbol is required");
+
+    let client = Client::connect(&connection_string, 100).expect("connection failed");
+
+    let contract = Contract::stock(stock_symbol);
+
+    let historical_data = client
+        .historical_data(
+            &contract,
+            Some(datetime!(2023-04-11 20:00 UTC)),
+            1.days(),
+            BarSize::Hour,
+            WhatToShow::Trades,
+            true,
+        )
+        .expect("historical data request failed");
+
+    println!("start: {:?}, end: {:?}", historical_data.start, historical_data.end);
+
+    for bar in &historical_data.bars {
+        println!("{bar:?}");
+    }
+}
diff --git a/examples/readme_historical_data.rs b/examples/readme_historical_data.rs
index cd4d80f3..a5a9d7b6 100644
--- a/examples/readme_historical_data.rs
+++ b/examples/readme_historical_data.rs
@@ -15,7 +15,7 @@ fn main() {
     let historical_data = client
         .historical_data(
             &contract,
-            datetime!(2023-04-11 20:00 UTC),
+            Some(datetime!(2023-04-11 20:00 UTC)),
             1.days(),
             BarSize::Hour,
             WhatToShow::Trades,
diff --git a/src/client.rs b/src/client.rs
index c1645c60..a9b60f98 100644
--- a/src/client.rs
+++ b/src/client.rs
@@ -767,7 +767,7 @@ impl Client {
     /// let contract = Contract::stock("TSLA");
     ///
     /// let historical_data = client
-    ///     .historical_data(&contract, datetime!(2023-04-15 0:00 UTC), 7.days(), BarSize::Day, WhatToShow::Trades, true)
+    ///     .historical_data(&contract, Some(datetime!(2023-04-15 0:00 UTC)), 7.days(), BarSize::Day, WhatToShow::Trades, true)
     ///     .expect("historical data request failed");
     ///
     /// println!("start_date: {}, end_date: {}", historical_data.start, historical_data.end);
@@ -779,13 +779,13 @@ impl Client {
     pub fn historical_data(
         &self,
         contract: &Contract,
-        interval_end: OffsetDateTime,
+        interval_end: Option<OffsetDateTime>,
         duration: historical::Duration,
         bar_size: historical::BarSize,
         what_to_show: historical::WhatToShow,
         use_rth: bool,
     ) -> Result<historical::HistoricalData, Error> {
-        historical::historical_data(self, contract, Some(interval_end), duration, bar_size, Some(what_to_show), use_rth)
+        historical::historical_data(self, contract, interval_end, duration, bar_size, Some(what_to_show), use_rth)
     }
 
     /// Requests interval of historical data ending now for [Contract].
@@ -818,6 +818,7 @@ impl Client {
     ///     println!("{bar:?}");
     /// }
     /// ```
+    #[deprecated(since = "1.1.0", note = "use `historical_data` instead")]
     pub fn historical_data_ending_now(
         &self,
         contract: &Contract,
diff --git a/src/market_data/historical/tests.rs b/src/market_data/historical/tests.rs
index f519aa7c..ba307590 100644
--- a/src/market_data/historical/tests.rs
+++ b/src/market_data/historical/tests.rs
@@ -87,7 +87,7 @@ fn test_historical_data() {
     let use_rth = true;
 
     let historical_data = client
-        .historical_data(&contract, interval_end, duration, bar_size, what_to_show, use_rth)
+        .historical_data(&contract, Some(interval_end), duration, bar_size, what_to_show, use_rth)
         .expect("historical data request failed");
 
     // Assert Response