אני אעדכן אותך אם יהיה שינוי בתוכנית.

This is a very common difference between English and Hebrew.

In Hebrew, when you talk about a future condition, you normally use the future tense after אם:

• אם יהיה שינוי... = if there is / if there will be a change...
• אם תבוא... = if you come...

So the Hebrew sentence is completely natural.
A very literal translation would be:

• I will update you if there will be a change in the plan.

But in natural English, we say:

• I’ll update you if there is a change in the plan.

אעדכן means I will update.

It is the 1st person singular future form of לעדכן = to update.

So:

• אני אעדכן = I will update
• הוא יעדכן = he will update
• היא תעדכן = she will update

This is a very common modern Hebrew verb.

It looks unusual because two different elements come together:

• א- = the future-tense prefix for I
• the verb root begins with ע

So:

• א + עדכן = אעדכן

In modern pronunciation, this is usually said roughly like a-ad-KEN, sometimes with a slight break between the two vowels.

So the spelling is not random—it reflects the grammar.

Yes, absolutely. Hebrew often leaves out subject pronouns when the verb already makes the subject clear.

So both are natural:

• אני אעדכן אותך אם יהיה שינוי בתוכנית
• אעדכן אותך אם יהיה שינוי בתוכנית

The version with אני can add a little emphasis, contrast, or clarity—something like:

• I’ll update you
• As for me, I’ll update you

Without אני, the sentence often sounds a bit more neutral and streamlined.

אותך means you as a direct object.

In this sentence:

• אעדכן אותך = I will update you

A useful point: Hebrew uses את with definite direct objects, and when that combines with a pronoun, you get forms like:

• אותי = me
• אותך = you
• אותו = him
• אותה = her

So אותך is not the subject and not to you. It means you as the person receiving the action.

In writing without vowels, אותך can mean either:

• you masculine singular, pronounced otkha
• you feminine singular, pronounced otakh

So the spelling stays the same, but the pronunciation changes.

If you were speaking to more than one person, you would use different forms:

• אתכם = you (masculine plural / mixed group)
• אתכן = you (feminine plural)

Literally, יהיה שינוי means there will be a change.

Hebrew often uses forms of היה (to be) to express existence or occurrence:

• יש שינוי = there is a change
• היה שינוי = there was a change
• יהיה שינוי = there will be a change

So in this sentence, it means that a change may occur in the future.

Because Hebrew usually attaches short prepositions directly to the following word.

Here:

• ב = in
• התוכנית = the plan / the program

Together they become:

• בתוכנית = in the plan / in the program

So this is a normal contraction:

• ב + ה... → ב... with the definite article absorbed into the word

That is why Hebrew writes it as one word.

Because שינוי here is indefinite:

• שינוי = a change
• השינוי = the change

The sentence means if there is a change, not if there is the change.

So the structure is:

• שינוי = an unspecified change
• בתוכנית = in the specific plan

That is why one noun is indefinite and the other is definite.

תוכנית can mean several related things, depending on context:

• plan
• program
• scheme
• sometimes even schedule

In this sentence, plan is the most natural translation:

• אם יהיה שינוי בתוכנית = if there is a change in the plan

But in another context, it could mean program, for example a TV program or a work program.

Yes. Hebrew word order is fairly flexible.

You can also say:

• אם יהיה שינוי בתוכנית, אני אעדכן אותך.

This means the same thing: If there is a change in the plan, I’ll update you.

The difference is mainly emphasis:

• אני אעדכן אותך אם יהיה שינוי בתוכנית puts the main focus first on I’ll update you
• אם יהיה שינוי בתוכנית, אני אעדכן אותך puts the condition first: if there is a change...

Both are natural.

Yes. You may see both spellings:

• תוכנית
• תכנית

They represent the same word. In everyday modern writing, תוכנית is very common.
So if you come across תכנית, do not assume it is a different word.

It is mostly neutral modern Hebrew. Very common in everyday speech and writing.

It is slightly more specific than just I’ll tell you or I’ll let you know, because לעדכן means to update.

Compare:

• אעדכן אותך = I’ll update you
• אגיד לך = I’ll tell you
• אודיע לך = I’ll inform you / let you know

So אעדכן אותך sounds natural and current, especially in work, planning, or logistical contexts.